LOS ANGELES -- A woman who died in a Los Angeles police patrol car after a violent arrest by officers had cocaine in her system when she went into cardiac arrest last summer, according to a coroner's report released Monday.

The report, however, said it was unclear exactly why 35-year-old Alesia Thomas died because it was difficult to know how the struggle was related.

The report showed multiple abrasions on elbows and knees but no major external trauma on her body or internal injuries. Police officials have said an officer kicked her in the genitals.

"Autopsy findings and police car video did not reveal evidence of fatal trauma or asphyxia," the report reads. "Effects of cocaine intoxication appear to be a major factor in the death."

Thomas, who weighed 228 pounds, died July 22 after leaving her 3-year-old and 12-year-old children at a police station about 2 a.m. Police said she dropped off the children because she was a drug addict who could not care for them.

Officers tracked Thomas to arrest her on suspicion of child endangerment.

Police said at the time that she put up a violent struggle and resisted arrest by attempting to pull away from the officers.

An officer knocked Thomas to the ground by sweeping her legs out from under her. Two other officers handcuffed her and tried to lead her to a patrol car, according to a department report. Officers used a strap around her ankles to restrain her.

Once Thomas was in the car, video shows her breathing shallowly until she drew her last breath.

The incident sparked an investigation involving at least five police officers that is ongoing, police Commander Andrew Smith said.

Four of the officers have been reassigned to administrative duties with no public contact; one officer was allowed to return to the field in another division, after officials determined she had minimal involvement, Smith said.

The report indicated Thomas had a history of bipolar disorder and attributed her behavior to cocaine intoxication.

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Browse Los Angeles sousveillance videos from 1992 to the present to see the big role individuals have played in reforming powerful institutions.
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  • Rodney King

    In this 1991 video, <a href="http://www.cnn.com/2012/04/28/us/rodney-king-profile/" target="_hplink">Rodney King is beaten</a> by a group of police officers. It is known as one of the most infamous police brutality cases, and the acquittal of the officers involved, one year later, sparked the <a href="http://www.huffingtonpost.com/news/la-riots/" target="_hplink">Los Angeles riots</a>.

  • William Cardenas

    In this 2006 video,<a href="http://www.washingtonpost.com/wp-dyn/content/article/2006/11/10/AR2006111001666.html" target="_hplink"> William Cardenas is seen being beaten by two LAPD officers</a>. Cardenas was reportedly resisting arrest after being seen drinking a beer on the sidewalk. The use of excessive force was deemed appropriate, but led to national news coverage of Copwatch initiatives.

  • May Day Melee

    This 2007 video was filmed at a May Day rally in MacArthur Park where undocumented immigrants were rallying for amnesty. Approximately 600 LAPD, both in helicopters and on the ground, began to descend on the area after declaring the event an unlawful assembly.

  • May Day Melee

    In response to the excessive force used by the LAPD at the May Day Melee, Mayor Antonio Villaraigosa personally oversaw the investigation and Police Chief William Bratton announced an attempt at reorganizing the LAPD. The city was ordered to pay <a href="http://articles.latimes.com/2009/feb/05/local/me-lapd-settlement5" target="_hplink">$12.85 million in a class action lawsuit</a> to the people who were hurt.

  • City Bus Abuse

    From the <a href="http://www.youtube.com/watch?v=vsW23kbVLs0" target="_hplink">UnivisionNews1</a> channel on YouTube: <blockquote>A cell phone camera caught the moment when an LAPD officer struck a mentally ill woman aboard a city bus. They were called in after she displayed erratic behavior. Civil rights activists argue he used excessive force and demand an investigation.</blockquote>

  • Hollywood Blvd Counter-Protest

    In this 2008 video, counter-protesters along the sidewalks gathered on Hollywood Boulevard as the Minuteman civilian border patrol group marched in the streets. When counter-protesters tried to join in the march, police stopped them because they did not have a permit, while the Minutemen did. ABC Los Angeles notes that sometimes, <a href="http://abclocal.go.com/kabc/story?section=news/local&id=4349432" target="_hplink">the police used force</a> to keep counter-protesters from the street.

  • Diop Kamau

    In this video from <a href="http://policeabuse.com/" target="_hplink">PoliceAbuse.com</a>, we learn about Diop Kamau (also know as Don Jackson), a former Police Sergeant Detective with the Hawthorne Police Department who went undercover to expose racism and violence in his own police department. Kamau went on to become the founder and executive director of the Police Complaint Center and the CEO of PoliceAbuse.com. Kamau has made it his mission to identify, investigate and reform police misconduct.

  • Donovan Jackson

    In this 2002 video by Mitchell Crooks, officers from both the LA County Sheriff's Department and the Inglewood Police Department are seen using excessive force against Donovan Jackson, a 16-year-old who suffers from a developmental disability. Jackson's father's car was unregistered, which is why the police stopped them. The video begins with Donovan face down, handcuffed on the asphalt. Moments later he is unconscious due to the way the officers were pulling on the chain he was wearing. This case had major reverberations throughout Inglewood. Following the trial of the police officers, two white police officers filed a discrimination suit against the city for being treated more harshly than their black counterparts. <a href="http://articles.latimes.com/2005/mar/08/local/me-donovan8" target="_hplink">They won $2.4 million</a>. <a href="http://query.nytimes.com/gst/fullpage.html?res=9C04E3DC163CF93AA35750C0A9639C8B63&ref=donovanjackson" target="_hplink">Donovan's family eventually settled</a> with the City of Inglewood for an undisclosed sum. The City of Inglewood and LA County never admitted any wrongdoing or liability.

  • Kelly Thomas

    In this 2011 video,<a href="http://www.huffingtonpost.com/2011/09/21/kelly-thomas-death-police-charged_n_974237.html" target="_hplink"> Kelly Thomas is seen beaten to death</a> by members of the Fullerton Police Department who were responding to the scene after someone called in a robbery. Officer Ramos can be heard saying, <a href="http://documents.latimes.com/charges-kelly-thomas-police/" target="_hplink">"Now see my fists? They are getting ready to fuck you up,"</a> to Thomas before beating him. <a href="http://www.huffingtonpost.com/2011/09/21/kelly-thomas-death-police-charged_n_974237.html" target="_hplink">Ramos was later charged with murder</a>. Cpl. Jay Cicinelli faces manslaughter charges. A trial is pending.