Except it was revealed at trial, Chauvin wasn't kneeling on his neck (it was his back), and Floyd had enough drugs in him to kill him.
This would be the same trial in which Chauvin was found guilty of ALL charges, yes?
Did Chauvin really have to kneel on Floyd for 9 minutes? From what I've seen, no. I do not find handcuffed men lying on the ground struggling to breathe intimidating and I am a 120 lb. woman. If Chauvin was so scared he continued to kneel on Floyd long after Floyd ceased to be a threat, then he is a coward and unfit to serve as a police officer.
You do not seem to know much about police procedure or what it takes to subdue large, heavily muscled, resistant men who are on drugs.
The police had spent a considerable time to get him into that position, so he could be controlled.