Expert blames Floyd’s death on heart rhythm problem
George Floyd died of a sudden heart rhythm problem due to his heart disease while being restrained by police, a retired forensic pathologist testified for the defense Wednesday at former Officer Derek Chauvin’s murder trial, contradicting experts who said Floyd succumbed to a lack of oxygen from the way he was pinned down.
Dr. David Fowler, a former chief medical examiner for the state of Maryland and now a member of a consulting firm, said the fentanyl and methamphetamine in Floyd’s system, and possible carbon monoxide poisoning from auto exhaust, were contributing factors.
“All of those combined to cause Mr. Floyd’s death,” he said on the second day of the defense case.
He also testified that he would classify the manner of death “undetermined,” rather than homicide as the county’s chief medical examiner ruled. Fowler said the death had too many conflicting factors, some of which could be ruled homicide and some that could be considered accidental.
Chauvin attorney Eric Nelson is trying to prove that the 19-year Minneapo- lis police veteran did what he was trained to do and that Floyd died because of his ille- gal drug use and underlying health problems.
Prosecutors say Floyd died because Chauvin’s knee was pressed against Floyd’s neck or neck area for 9 1/2 minutes as the 46-year-old Black man lay pinned to the pavement on his stomach last May, his hands cuffed behind his back.
Fowler listed a multitude of factors: Floyd’s narrowed arteries, his enlarged heart, his high blood pressure, his drug use, the stress of his restraint, the vehicle exhaust, and a tumor or growth in his lower abdomen that can sometimes play a role in high blood pres- sure by releasing “fight-orflight” hormones.
Fowler said all of those fac- tors could have acted together to cause Floyd’s heart to work harder and suddenly stop.
Previous witnesses have noted that a sudden heart rhythm problem does not nec- essarily produce visible signs on autopsy but can be inferred from circumstances such as a victim suddenly clutching one’s chest and collapsing.
Nelson questioned Fowler extensively about carbon monoxide, which displaces oxygen in the bloodstream of people who breathe it in. Fowler said it could have contributed to oxygen depletion in Floyd, noting that he was facing the tailpipe end of a vehicle. But there is no way to know for sure because, he acknowledged, Floyd’s blood was never tested for carbon monoxide.
Nelson similarly tried to introduce another possible explanation on Tuesday when he raised questions about excited delirium, or what a witness described as a potentially lethal condition that can include agitation, incoherent speech and extraordinary strength.
Several top Minneapolis police officials, including the police chief, have testified that Chauvin used excessive force and violated his training. And a number of medical experts called by prosecutors have said Floyd died from a lack of oxygen because the way he was restrained restricted his breathing.