Police told residents to stay inside with their doors locked and answer the door for no one but authorities in uniform. Spooky photos of nearly empty streets have been coming in over social media and wire services.
Below, a live blog of events as they unfold.
04/20/2013 11:12 PM EDT
How Investigators Found The Suspects
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.
04/20/2013 10:46 PM EDT
CBS News: Dzhokhar Tsarnaev May Have Tried To Commit Suicide
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.
04/20/2013 10:39 PM EDT
Two Friends Of Dzhokhar Tsarnaev Taken Back Into Custody
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.
Read more here.
04/20/2013 10:31 PM EDT
Tamerlan Tsarnaev's Trip To Dagestan
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.
04/20/2013 9:07 PM EDT
New Details Of Thursday Night Chaos
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.
04/20/2013 8:07 PM EDT
Older Brother, Uncle Had Falling Out Over Islam
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.
04/20/2013 7:33 PM EDT
Dead Bombing Suspect Wounded 'From Head To Toe'
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.
04/20/2013 6:46 PM EDT
Neil Diamond Sings 'Sweet Caroline' At Emotional Red Sox Game
04/20/2013 6:27 PM EDT
A Key Turning Point In The Investigation
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.
04/20/2013 6:24 PM EDT
Map Of Boston's Reaction To The Bombing On Twitter
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.