No one has any clue if he died of a fetanyl over dose. His blood levels of fetanyl were high but consistent with what people would have int heir blood who are prescribed it, and they dont die. so that thats a huge leap
But i also dont care what killed him, what matters is the that a police office after being told the guy had no pulse instead of making any attempt to save him (and he wasnt in any immediate danger) he instead continued to sit on his chest for several minutes after he died.. he knew he was killing him and continued anyway. What actually killed him doesnt matter because he clearly wanted him dead and were taking actions to ensure he died.