BOSTON — Boston Marathon bombing suspect Dzhokhar Tsarnaev lay hospitalized in serious condition under heavy guard Saturday – apparently in no shape to be interrogated – as investigators tried to establish the motive for the deadly attack and the scope of the plot.

People across the Boston area breathed easier the morning after Tsarnaev, 19, was pulled, wounded and bloody, from a tarp-covered boat in a Watertown backyard. The capture came at the end of a tense day that began with his 26-year-old brother, Tamerlan, dying in a gunbattle with police.

There was no immediate word on when Tsarnaev might be charged and what those charges would be. The twin bombings killed three people and wounded more than 180.

The most serious charge available to federal prosecutors would be the use of a weapon of mass destruction to kill people, which carries a possible death sentence. Massachusetts does not have the death penalty.

President Barack Obama said there are many unanswered questions about the bombing, including whether the Tsarnaev brothers – ethnic Chechens from southern Russia who had been in the U.S. for about a decade and lived in the Boston area – had help from others. The president urged people not to rush judgment about their motivations.

U.S. officials said an elite interrogation team would question the Massachusetts college student without reading him his Miranda rights, something that is allowed on a limited basis when the public may be in immediate danger, such as instances in which bombs are planted and ready to go off.

The American Civil Liberties Union expressed concern about that possibility. Executive Director Anthony Romero said the legal exception applies only when there is a continued threat to public safety and is "not an open-ended exception" to the Miranda rule, which guarantees the right to remain silent and the right to an attorney.

The federal public defender's office in Massachusetts said it has agreed to represent Tsarnaev once he is charged. Miriam Conrad, public defender for Massachusetts, said he should have a lawyer appointed as soon as possible because there are "serious issues regarding possible interrogation."

Massachusetts Gov. Deval Patrick said Saturday afternoon that Tsarnaev was in serious but stable condition and was probably unable to communicate. Tsarnaev was at Boston's Beth Israel Deaconess Medical Center, where 11 victims of the bombing were still being treated.

"I, and I think all of the law enforcement officials, are hoping for a host of reasons the suspect survives," the governor said after a ceremony at Fenway Park to honor the victims and survivors of the attack. "We have a million questions, and those questions need to be answered."

The all-day manhunt Friday brought the Boston area to a near standstill and put people on edge across the metropolitan area.

The break came around nightfall when a homeowner in Watertown saw blood on his boat, pulled back the tarp and saw a bloody Dzhokhar Tsarnaev hiding inside, police said. After an exchange of gunfire, he was seized and taken away in an ambulance.

Raucous celebrations erupted in and around Boston, with chants of "USA! USA!" Residents flooded the streets in relief four days after the two pressure-cooker bombs packed with nails and other shrapnel went off.

Michael Spellman said he bought tickets to Saturday's Red Sox game at Fenway Park to help send a message to the bombers.

"They're not going to stop us from doing things we love to do," he said, sitting a few rows behind home plate. "We're not going to live in fear."

During the long night of violence leading up to the capture, the Tsarnaev brothers killed an MIT police officer, severely wounded another lawman and took part in a furious shootout and car chase in which they hurled explosives at police from a large homemade arsenal, authorities said.

"We're in a gunfight, a serious gunfight. Rounds are going and then all of the sudden they see something being thrown at them and there's a huge explosion," Watertown Police Chief Edward Deveau said Saturday of the melee.

The chief said one of the explosives was the same type used during the Boston Marathon attack, and authorities later recovered a pressure cooker lid that had embedded in a car down the street. He said the suspects also tossed two grenades before Tamerlan ran out of ammunition and police tackled him.

But while handcuffing him, officers had to dive out of the way as Dzhokhar drove the carjacked Mercedes at them, Deveau said. The sport utility vehicle dragged Tamerlan's body down the block, he said. Police initially tracked the escaped suspect by a blood trail he left behind a house after abandoning the Mercedes, negotiating his surrender hours later after an area resident saw blood and found the suspect huddled in his boat.

Chechnya, where the Tsarnaev family has roots, has been the scene of two wars between Russian forces and separatists since 1994. That spawned an Islamic insurgency that has carried out deadly bombings in Russia and the region, although not in the West.

Investigators have not offered a motive for the Boston attack. But in interviews with officials and those who knew the Tsarnaevs, a picture has emerged of the older one as someone embittered toward the U.S., increasingly vehement in his Muslim faith and influential over his younger brother.

The Russian FSB intelligence service told the FBI in 2011 about information that Tamerlan Tsarnaev was a follower of radical Islam, two law enforcement officials said Saturday.

According to an FBI news release, a foreign government said that Tamerlan Tsarnaev appeared to be strong believer and that he had changed drastically since 2010 as he prepared to leave the U.S. for travel to the Russian region to join unspecified underground groups.

The FBI did not name the foreign government, but the two officials said it was Russia. The officials spoke on condition of anonymity because they were not authorized to talk about the matter publicly.

The FBI said that in response, it interviewed Tamerlan Tsarnaev and relatives, and did not find any domestic or foreign terrorism activity. The bureau said it looked into such things as his telephone and online activity, his travels and his associations with others.

An uncle of the Tsarnaev brothers said he had a falling-out with Tamerlan over the man's increased commitment to Islam.

Ruslan Tsarni of Montgomery Village, Md., said Tamerlan told him in a 2009 phone conversation that he had chosen "God's business" over work or school. Tsarni said he then contacted a family friend who told him Tsarnaev had been influenced by a recent convert to Islam.

Tsarni said his relationship with his nephew basically ended after that call.

As for Dzhokhar Tsarnaev, "he's been absolutely wasted by his older brother. I mean, he used him. He used him for whatever he's done," Tsarni said.

Albrecht Ammon, a downstairs-apartment neighbor of Tamerlan Tsarnaev in Cambridge, said in an interview that the older brother had strong political views about the United States. Ammon quoted Tsarnaev as saying that the U.S. uses the Bible as "an excuse for invading other countries."

Tamerlan Tsarnaev studied accounting as a part-time student at Bunker Hill Community College in Boston for three semesters from 2006 to 2008, the school said. He was married with a young daughter. Dzhokhar Tsarnaev was a student at the University of Massachusetts Dartmouth.

As of Saturday, more than 50 victims of the bombing remained hospitalized, three in critical condition.

___

Associated Press writers Denise Lavoie and Steve Peoples in Boston; Mike Hill in Watertown, Mass.; Colleen Long in New York; Pete Yost in Washington; Eric Tucker in Montgomery Village, Md.; and AP Sports Writer Jimmy Golen in Boston contributed to this report.

PHOTOS: (story continues below)
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  • Police Leave The Scene After Capturing Suspect

    Members of a police S.W.A.T. team exit Franklin Street moments after 19-year-old bombing suspect Dzhokhar A. Tsarnaev was apprehended on April 19, 2013 in Watertown, Massachusetts. A manhunt for a Tsarnaev ended this evening with his capture on a boat parked on a residential property in Watertown, Massachusetts.

  • Relieved Police Officers After Suspect's Capture

    Two police officers laugh while securing the area around Franklin Street on April 19, 2013 in Watertown, Massachusetts. A manhunt for a suspect in the Boston Marathon bombing, Dzhokhar A. Tsarnaev, 19, ended this evening with his capture on a boat parked on a residential property in Watertown, Massachusetts.

  • Watertown Residents Celebrate

    Residents applaud after the capture of the second of two suspects wanted in the Boston Marathon bombings April 19, 2013 in Watertown, Massachusetts.

  • Media Interview Cops After Suspect Captured

    A SWAT team member is followed by reporters and a celebrating crowd after the successful operation to capture 19-year-old bombing suspect Dzhokhar A. Tsarnaev on April 19, 2013 in Watertown, Massachusetts.

  • Watertown Residents Waiting As Police Closed In On Suspect

    Residents await the capture of the second of two suspects wanted in the Boston Marathon bombings April 19, 2013 in Watertown, Massachusetts. Thousands of heavily armed police staged an intense manhunt for a Chechen teenager suspected in the Boston marathon bombings with his brother, who was killed in a shootout.

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Resident Rosie Meyer, who said she heard gunshots, reacts while watching police respond on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly Chechen of origin, are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Mario Tama / Getty Images)

  • Suspect No, 2's Last Stand

    Police officers guard the entrance to Franklin street where there is an active crime scene search for the suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. Gunfire erupted Friday night amid the manhunt for the surviving suspect in the Boston Marathon bombing, and police in armored vehicles and tactical gear rushed into the Watertown neighborhood in a possible break in the case. (Matt Rourke / AP)

  • Suspect No, 2's Last Stand

    Mimi de Quesada, of Watertown, Mass., reacts while standing by her home in the wake of the sound of shots fired in Watertown, Mass., Friday, April 19, 2013, as a massive search continued for one of two suspects in the Boston Marathon bombings. De Quesada said she had just come out to enjoy the day when the shots rang out about two blocks form her home. A second suspect died in the early morning hours after an encounter with law enforcement. (Craig Ruttle / AP)

  • Suspect No, 2's Last Stand

    An officer evacuates a child away from an area where a suspect is hiding on Franklin St., on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    People watch as police search for suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. Gunfire erupted Friday night amid the manhunt for the surviving suspect in the Boston Marathon bombing, and police in armored vehicles and tactical gear rushed into the Watertown neighborhood in a possible break in the case. (Matt Rourke / AP)

  • Suspect No, 2's Last Stand

    Many different law enforcement agencies descend on an area around Franklin Street on April 19, 2013 in Watertown, Massachusetts. After a car chase and shootout with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15 that killed three people and wounded at least 170. (Jared Wickerham / Getty Images)

  • Suspect No, 2's Last Stand

    Police converge near the scene where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is in hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly Chechen of origin, are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Spencer Platt / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    People react while watching police respond to a reported shooting on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly Chechen of origin, are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Mario Tama / Getty Images)

  • Suspect No, 2's Last Stand

    Members of a police S.W.A.T. team run to the scene where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is in hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly of Chechen origin, are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Spencer Platt / Getty Images)

  • Suspect No, 2's Last Stand

    Police converge near the scene where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is in hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly of Chechen origin, are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Spencer Platt / Getty Images)

  • Suspect No, 2's Last Stand

    Family members who fled the scene where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is in hiding are comforted on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly of Chechen origin, are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Spencer Platt / Getty Images)

  • Suspect No, 2's Last Stand

    Members of a police S.W.A.T. team run to the area where it was believed 19-year-old bombing suspect Dzhokhar A. Tsarnaev is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police last night, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old suspect Dzhokhar A. Tsarnaev. The two men, reportedly of Chechen of origin, are suspects in the bombings at the Boston Marathon on April 15 that killed three people and wounded at least 170. (Spencer Platt / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • Suspect No, 2's Last Stand

    Law enforcement approach an area reportedly where a suspect is hiding on April 19, 2013 in Watertown, Massachusetts. After a car chase and shoot out with police, one suspect in the Boston Marathon bombing, Tamerlan Tsarnaev, 26, was shot and killed by police early morning April 19, and a manhunt is underway for his brother and second suspect, 19-year-old Dzhokhar A. Tsarnaev. The two men are suspects in the bombings at the Boston Marathon on April 15, that killed three people and wounded at least 170. (Darren McCollester / Getty Images)

  • The Manhunt Continues

    A woman carries a girl from their home as a SWAT team searching for a suspect in the Boston Marathon bombings enters the building in Watertown, Mass., Friday, April 19, 2013. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during their getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Charles Krupa)

  • Manhunt For Bombing Suspect No. 2

    Police in tactical gear surround an apartment building while looking for a suspect in the Boston Marathon bombings in Watertown, Mass., Friday, April 19, 2013. All residents of Boston were ordered to stay in their homes Friday morning as the search for the surviving suspect in the marathon bombings continued after a long night of violence that left another suspect dead. (AP Photo/Charles Krupa)

  • Manhunt For Bombing Suspect No. 2

    A police officer evacuates a shoeless man holding a child as members of law enforcement conduct a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during a getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Matt Rourke)

  • Manhunt For Bombing Suspect No. 2

    Residents look out a window as officials inspect an apartment building in Watertown, Mass., Friday, April 19, 2013. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during their getaway attempt in a long night of violence that left one of them dead and another still at large Friday. (AP Photo/Julio Cortez)

  • Manhunt For Bombing Suspect No. 2

    Heavily armed police officers do house to house searches the neighborhoods of Watertown, Mass. Friday, April 19, 2013, as a massive search continued for one of two suspects in the Boston Marathon bombing. A second suspect died in the early morning hours after an encounter with law enforcement. (AP Photo/Craig Ruttle)

  • Manhunt For Bombing Suspect No. 2

    Police in tactical gear conduct a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. The bombs that blew up seconds apart near the finish line of the Boston Marathon left the streets spattered with blood and glass, and gaping questions of who chose to attack and why. (AP Photo/Matt Rourke)

  • Manhunt For Bombing Suspect No. 2

    Tactical teams exit an apartment building while searching for a suspect in the Boston Marathon bombings in Watertown, Mass., Friday, April 19, 2013. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during a getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Charles Krupa)

  • Manhunt For Bombing Suspect No. 2

    KRON 4 Coverage of the Watertown Mass. Manhunt

  • Manhunt For Bombing Suspect No. 2

    A police officer in tactical gear conducts a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. The bombs that blew up seconds apart near the finish line of the Boston Marathon left the streets spattered with blood and glass, and gaping questions of who chose to attack and why. (AP Photo/Matt Rourke)

  • Manhunt For Bombing Suspect No. 2

    Police continue to patrol the neighborhoods of Watertown, Mass. Friday, April 19, 2013, as a massive search continued for one of two suspects in the Boston Marathon bombing. A second suspect died in the early morning hours after an encounter with law enforcement. (AP Photo/Craig Ruttle)

  • Police Search For Suspect

    A police officer with gun drawn searches for a suspect on April 19, 2013 in Watertown, Massachusetts. Earlier, a Massachusetts Institute of Technology campus police officer was shot and killed late Thursday night at the school's campus in Cambridge. A short time later, police reported exchanging gunfire with alleged carjackers in Watertown, a city near Cambridge. It's not clear whether the shootings are related or whether either are related to the Boston Marathon bombing.

  • Manhunt For Bombing Suspect No. 2

    The search continues April 19, for the second suspect in the Boston Marathon bombings.

  • Manhunt For Bombing Suspect No. 2

    Man being taken into custody on Nichols Ave and Quimby. Police overheard saying "he has shit all in his pockets."

  • Manhunt For Bombing Suspect No. 2

    A neighbor is escorted to safety as police surround a home while searching for a suspect in the Boston Marathon bombings in Watertown, Mass., Friday, April 19, 2013. The two suspects in the Boston Marathon bombing killed an MIT police officer and hurled explosives at police in a car chase and gun battle overnight that left one of them dead and his brother on the loose, authorities said Friday. (AP Photo/Charles Krupa)

  • Cops In Bullet Proof Vests

    Cops suiting up with bullet proof vests in Watertown.

  • Reports Of Shooting, Explosions In Watertown

    A vehicle carrying officers in tactical gear arrives at the Watertown neighborhood of Boston, Friday, April 19, 2013. Dozens of officers and National Guard members are in Watertown, where television outlets report that gunfire and explosions have been heard.

  • Officers Arrive In Watertown

    Officers wearing tactical gear arrive at the Watertown neighborhood of Boston, Friday, April 19, 2013.

  • A girl looks out the window of her family's home as a SWAT team drives through her neighborhood while searching for a suspect in the Boston Marathon bombings in Watertown, Mass., Friday, April 19, 2013. Two suspects in the Boston Marathon bombing killed an MIT police officer, injured a transit officer in a firefight and threw explosive devices at police during their getaway attempt in a long night of violence that left one of them dead and another still at large Friday, authorities said as the manhunt intensified for a young man described as a dangerous terrorist. (AP Photo/Charles Krupa)

  • FBI On Scene In Watertown

    An FBI official arrives at the Watertown neighborhood of Boston, Friday, April 19, 2013.

  • Police Establishing Perimeter

    Boston Police are setting up perimeter tape across Nichols Avenue right now.

  • Police officers stand guard in a staging area as nearby officials conducts a search for a suspect in the Boston Marathon bombings, Friday, April 19, 2013, in Watertown, Mass. The two suspects in the Boston Marathon bombing killed an MIT police officer and hurled explosives at police in a car chase and gun battle overnight that left one of them dead and his brother on the loose, authorities said Friday. (AP Photo/Matt Rourke)

  • Manhunt For Bombing Suspect No. 2

    Boston Police chief on the scene in Boston's Watertown neighborhood.

  • Christina Wilkie Reports From Watertown

  • FBI Agents Arrive In Watertown

    A half-dozen FBI agents just arrived at the Nichols Ave perimeter. At least one in a bulletproof vest.

  • Raw Shooting at MIT Watertown

    A NewsCenter 5 viewer sent in uncut video of a shootout between police and at least one suspect in the streets of Watertown, Mass.




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The Washington Post has published a long account of investigators' exhaustive efforts to find the Boston Marathon suspects using mountains of video footage and photographs, as well as other leads. An excerpt:

Quickly, the authorities secured a warehouse in Boston’s Seaport district and filled the sprawling space: On half of the vast floor, hundreds of pieces of bloody clothes were laid out to dry so they could be examined for forensic clues or flown to FBI labs at Quantico in Prince William County for testing. In the other half of the room, more than a dozen investigators sifted through hundreds of hours of video, looking for people “doing things that are different from what everybody else is doing,” Boston Police Commissioner Edward Davis said in an interview Saturday. The work was painstaking and mind-numbing: One agent watched the same segment of video 400 times.

Read the whole thing here.

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CBS News reports that Boston bombing suspect captured on Friday night suffered at least two bullet wounds, and that one of them may be evidence that he tried to end his own life.

The bullet wound to the neck, which has an exit wound in the back of the 19-year-old’s neck, “is very possibly a suicide attempt,” said Miller, a former assistant director at the Federal Bureau of Investigation.

Read the whole report here.

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The Daily News reports:

The two men, known to neighbors by their first names Azmat and Diaz — who share a black BMW SUV adorned with a novelty license plate that reads “Terrorista #1” — were cuffed and hauled out of their Carriage Dr. apartment shortly before 4 p.m.

The apparent arrests occurred about 30-45 minutes after authorities with the FBI, ICE and the U.S. Department of Homeland Security descended on the Hidden Brook Apartment complex.

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The Guardian has an account of the dead bombing suspect's 2012 voyage to Dagestan, a small, troubled region of Russia where he had once lived:

According to US travel records, Tsarnaev arrived at Moscow's Sheremetyevo airport on 12 January, returning on 17 July. He spent time in Makhachkala that summer. "It was 40C and he was wearing these American boots," said Larissa Abakarova, who maintains a shop across the street from the home of the parents of Tsarnaev and his brother, Dzhokhar, who was arrested late on Friday. "He was stylish, kind, good-looking. I'm in shock."

Read the whole thing here.

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The Washington Post has a new story that fills in many details of the Tsarnaev brothers' bloody path to Watertown, including their murder of an MIT Cop:

Just after 10:30 p.m. Thursday, the pair walked up to a parked police car at the Massachusetts Institute of Technology, where Sean Collier, a 26-year-old campus officer, was nearing the end of his 3-to-11 p.m. shift.

A security camera would later show two men approaching the car and speaking to the officer. Abruptly, one of the men was seen pulling a gun and shooting Collier multiple times, including once in the head. Some officers concluded that the shooting was an effort to provoke a larger confrontation with police.

“They were looking to start something,” one official said.

Read the whole thing here.

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From the AP:

Ruslan Tsarni says he grew concerned about Tamerlan Tsarnaev (tsahr-NEYE'-ehv) when he told him in a 2009 phone conversation that he had chosen "God's business" over work or school. Tsarni said he then contacted a family friend who told him Tsarnaev had been influenced by a recent convert to Islam.

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A doctor involved in treating the Boston Marathon bombing suspect who died in a gunbattle with police says he had injuries head to toe and all limbs intact when he arrived at the hospital.

Dr. David Schoenfeld said 26-year-old Tamerlan Tsarnaev was unconscious and had so many penetrating wounds when he arrived at Beth Israel Deaconess Medical Center early Friday that it isn't clear which ones killed him, and a medical examiner will have to determine the cause of death.

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The New York Times reports that the decision to release the photos of the marathon bombing suspects to the public was a major turning point in the investigation.

The authorities knew that broadly distributing the images — some captured by ubiquitous surveillance cameras and cellphone snapshots and winnowed down using sophisticated facial-recognition software — would accelerate the digital dragnet, but they did not realize the level of chaos it would create.

Intelligence and law enforcement officials said the authorities in Boston weighed the risks of some mayhem against their growing fear that time was slipping away and that heavily armed and increasingly dangerous men, and possibly accomplices, could wage new attacks in the Boston area or beyond.

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Syracuse University Professor Anthony Rotolo and student Andrew Bauer mapped 200 of the tweets sent out from Boston in the hours right after the marathon bombing, creating an interactive portrait of the city's reaction to Monday's horrifying events.

See the map here.

(h/t Mashable)

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His actions may have been vital in helping police catch the Boston Marathon bombing suspects, even after the attacks both his legs were amputated from the knee down. Now some of that heroism is being returned.

Nearly 10,000 people have now donated to Bucks for Bauman, an effort to help pay the medical expenses of Jeff Bauman, the Boston Marathon bombing survivor known not only for a now iconic -- and extremely graphic -- photo, but also for helping the FBI identify at least one of the bombing suspects. Set up by his friends on the crowdfunding site GoFundMe, the fund has already raised more than $360,000 since last Tuesday to help pay for Bauman’s devastating injuries.

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Massachusetts Gov. Deval Patrick says the surviving suspect in the Boston Marathon bombings is in serious but stable condition and likely can't communicate yet.

Patrick spoke outside Fenway Park after appearing in a pregame ceremony at Saturday afternoon's Red Sox game.

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The American Civil Liberties Union says it's concerned the surviving Boston Marathon bombing suspect will be questioned by investigators without being read his Miranda rights.

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Details of the manhunt for the Boston Marathon bombing suspects were murky at the height of the investigation, leading many news outlets to misreport the facts. But now that both suspects have been apprehended, the specific circumstances of the search that locked down one Boston suburb for nearly 18 hours are becoming more clear.

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Federal public defenders have agreed to represent the suspect in the Boston Marathon bombings.

Miriam Conrad, the federal defender for Massachusetts, says her office expects to represent Dzhokhar Tsarnaev after he is charged.

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boat

How police saw that someone was in the boat without removing the tarp covering it.

Image credit: Massachusetts State Police

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Republican lawmakers issued a statement Saturday urging President Barack Obama to treat Dzhokhar Tsarnaev, the suspect in the Boston Marathon bombings, as an "enemy combatant."

Sens. Lindsey Graham (R-S.C.), John McCain (R-Ariz.) and Kelly Ayotte (R-N.H.) and Rep. Peter King (R-N.Y.) said Tsarnaev "clearly is a good candidate for enemy combatant status" in a statement posted to Graham's website.

"We do not want this suspect to remain silent," the lawmakers said in their statement.

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Wearing special home jerseys with "Boston" sewn across the chest, the Red Sox returned to Fenway Park on Saturday afternoon. More importantly, the people of Boston gathered together to resume their normals lives and root, root, root for the home team just one day after authorities aprehended the second suspect in the Boston Marathon bombings.

The Red Sox game against the Kansas City Royals was preceded by an emotional pre-game ceremony that honored the victims of the horrific attacks on the Boston Marathon and paid tribute to law enforcement officials, first responders, race participants and volunteers. The emotional scene also included a stirring montage of images from the tumultuous week in Boston set to the song "Hallelujah" as performed by Jeff Buckley, ceremonial first pitches and yet another rousing sing-along rendition of the national anthem.

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One of the two ethnic Chechens suspected by U.S. officials of being behind the Boston Marathon bombings had been under FBI surveillance for at least three years, his mother said.

Zubeidat Tsarnaeva told the English-language Russia Today state television station in a phone interview, a recording of which was obtained by Reuters, that she believed her sons were innocent and had been framed.

Tamerlan Tsarnaev, 26, was killed in a shootout with police and his 19-year-old brother Dzhokhar was captured after a day-long manhunt.

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College students in Boston were dancing in the streets Friday night after a week of turmoil.

The fatal bombings at the Boston Marathon on Monday locked down many higher education institutions in the Boston metro area, forcing them to cancel classes.

Just as colleges began to recover from the attack, a Thursday night shooting on the Massachusetts Institute of Technology campus left one officer dead. One of the bombing suspects was killed in a shoot-out with police a short time later, and a subsequent manhunt for remaining bombing suspect Dzhokhar Tsarnaev put schools back on lockdown Friday.

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Handguns, a rifle and at least six bombs -- three of which exploded -- were found at the scene early Friday after officers first confronted the two Boston Marathon bombing suspects in the darkness of a residential street, the Watertown, Massachusetts, police chief told

CNN's Wolf Blitzer on Saturday.

A single officer was the first to encounter the two cars that Tamerlan and Dzhokar Tsarnaev were driving, just before 1 a.m. Friday, Chief

Edward Deveau said.

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David Henneberry may not have tried to be a hero, but that's what he's being called.

The Watertown boat owner was the first to spot the bombing suspect Dzhokhar Tsarnaev after the 19-year-old eluded police following a shootout early Friday.

Henneberry tipped off police, leading to the eventual capture of Tsarnaev Friday night.

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President Barack Obama spoke about the "resolve and resilience" of Boston during his weekly address on April 20.

"On Monday, an act of terror wounded dozens and killed three innocent people at the Boston Marathon," Obama says in a video posted to the White House's YouTube page on Saturday. "But in the days since, the world has witnessed one sure and steadfast truth: Americans refuse to be terrorized."

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If you found in your copy of Friday morning's New York Post a letter from the paper's editor-in-chief, Col Allan, expressing "regret" over the Post's "intentionally misleading and harmful" coverage of the Boston bombing, you might have thought, well, that's appropriate, but I didn't see that coming given the fact that Allan wasn't apologetic yesterday, for his paper's astounding failures during this trying week.

Also, you may have gone on to think, this letter is unusually eloquent for a man who essentially has nothing but cheap gin and trash pulled from the East River sloshing around inside his skull.

Well, allow me to penetrate the mystery.

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New York state Sen. Greg Ball (R) suggested using torture on Dzhokhar Tsarnaev, the suspect in the Boston Marathon bombing, in a tweet Friday night.

Tsarnaev was captured by authorities late Friday evening in Watertown, Mass., four days after the Boston Marathon bombing. Authorities say the suspect and his brother, 26-year-old Tamerlan Tsarnaev, killed an MIT police officer, severely wounded another lawman and hurled explosives at police in a car chase and gun battle.

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President Barack Obama Friday night praised law enforcers and Bostonians after the massive manhunt that led to the capture of the second suspect in the Boston Marathon bombings. The first suspect was killed Thursday in a shootout with police.

As he began his address, Obama thanked the public, saying, "Tonight, our nation is in debt to the people of Boston." He went on to thank Bostonians as "citizens and partners" in the investigation.

The president said he had ordered the "full resources of the federal government" to help in the investigation that he said wouldn't have been possible without close coordination among federal, state and local authorities.

"They all worked as they should," Obama said, "as a team."

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HuffPost's Michael McLaughlin and Christina Wilkie report:

WATERTOWN, Mass. -- Friday morning in the Boston area began in a tense silence, as the sprawling manhunt for an alleged teenaged terrorist forced city residents indoors for their own safety. Friday night, however, ended with spontaneous parades celebrating his capture.

As 19-year-old Dzhokhar Tsarnaev was pulled wounded from his backyard boat hideout and raced to Beth Israel Hospital in police custody, many Bostonians finally exhaled, after a devastating week that began with the double bombings at Monday’s Boston marathon. The suspect's brother, Tamerlan Tsarnaev, 26, was killed Friday morning in a shootout with police.

"CAPTURED!!!" trumpeted the Boston Police Department on Twitter Friday night. "The hunt is over. The search is done. The terror is over. And justice has won. Suspect in custody."

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Message from FBI Director Robert S. Mueller:

During this long week, we have seen an extraordinary effort by law enforcement, intelligence, and public safety agencies. These collaborative efforts, with the help and cooperation of the public, resulted in the successful outcome we have seen tonight. The investigation will continue as part of our efforts to seek answers and justice, and there will be no pause in that effort. But tonight, I wish to thank all those who worked so tirelessly throughout the week in the pursuit of safety and justice.

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