George Floyd's preexisting conditions and drug use had no impact on his death, doctor s... - 0 views
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A renowned pulmonary critical care doctor testified Thursday morning that George Floyd died from a "low level of oxygen" when former police officer Derek Chauvin pinned him to the street and restricted his ability to breathe.
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"This caused damage to his brain that we see, and it also caused a PEA arrhythmia that caused his heart to stop," Dr. Martin Tobin of Chicago testified
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He identified four main reasons why Floyd died: the handcuffs and the street acting as a "vise;" Chauvin's left knee on his neck; Floyd's prone position; and Chauvin's right knee on Floyd's back, arm and side.
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Further, Tobin explained that fentanyl did not play a role in Floyd's death. After observing body-cam footage, Tobin calculated Floyd's respiratory rate at 22 breaths per minute, within normal range. People who overdose on fentanyl generally have a respiratory rate of about 10, so Tobin concluded that fentanyl was not affecting Floyd's breathing.
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By observing Floyd's condition in video and calculating the rate of decline in his blood-oxygen level, Tobin deduced that Floyd eventually had no oxygen left in his body. Chauvin remained kneeling on him for another three minutes and two seconds after that point, he said.
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He highlighted a moment in the body-camera footage when Floyd's legs lift into the air. This involuntary movement, also known as an anoxic seizure, is evidence of a fatal brain injury due to lack of oxygen, Tobin said.
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Over the last few days, a series of police experts and training coordinators have testified that Chauvin violated police policy and used excessive force on Floyd.
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Baker performed the autopsy on Floyd and determined his death was a homicide, listing the cause of death as "cardiopulmonary arrest complicating law enforcement subdual, restraint, and neck compression."