Yeah, I'm not sure on that either. But it's hard to understand why Chauvin restrained George on the ground basically until he died, despite his obvious distress and pleas by members of the public to let him up and help him. We now know George did not die of blood loss to the brain, but a massive fentanyl overdose causing respiratory depression which began occurring before the police even arrived. We also know George told the police he was hooping so they had reason to believe he may have been exposed to drugs inside his rectum (and it's very common for persons under arrest to swallow smuggled drugs when the police approach, which can produce a similar result as what happened to Floyd). So perhaps Derek didn't KILL George, but he certainly did not render first aid or attempt to determine if George was having a heart attack, panic attack, drug overdose, allergic reaction, or any other kind of situation requiring medical aid. He just... kneeled.