A fair question, but Floyd was handcuffed with his hands behind his back.
One PBS report says that Chauvin had his knee on Floyd's neck for 8 minutes 46 seconds. Three plus minutes of that time was spent with knee on the neck after Floyd stopping moving and talking.
There was some back-and-forth between the cops during this time, questioning the procedure they were using to restrain Floyd. Chauvin appeared to be the cop calling the shots.
I was not aware till now that Floyd had been in handcuffs, even before he was dragged out of the car and put on the ground, face down. That was the part I was missing.
I will concede that Chauvin needs to answer for his actions and I absolutely do not contest your point about "the rules." Chauvin needs to answer for his actions, though I will say again Floyd's autopsy report does not indicate that Chauvin killed him, despite the charges. At least, the autopsy report that I read at the time.
Given the political goat**** this entire thing has been, it's entirely possible that the ME walked his report back to show something else. It wouldn't surprise me in the least.
According to "the rules," the defendant may not be able to receive a fair trial by a jury of his peers in Minneapolis. Don't be surprised to see a change of venue request, unless that's already been denied. Not gonna look that one up.