Chauvin did know what he was doing. Floyd was overdosed on fentanyl and experiencing excited delirium syndrome and the cops were trained to hold the person down until the paramedics could administer a ketamine shot. Chavin was going by the book and didn’t kill Floyd, he was already saying he couldn’t breathe before he went to the ground, and the neck pressure was not strong enough to kill him. He died of being drugged up and having heart issues. People experiencing EDS will keep struggling against the cuffs until they give themselves a heart attack.
shhh, facts aren’t allowed-
That doesn’t explain the look on his face.