I wouldn’t say he’s “innocent”. This is not an approved use of force. But he won’t be convicted of 3rd degree murder.
One other thing that baffled me for 2 days was the expression on Chauvin’s face the whole time. At first I contributed it to cop indignation. Watch a bunch of similar videos where citizens are telling a cop what to do in a volatile situation. Cop’s almost always, instinctively do the exact opposite of what a citizen tells them, and that’s what I thought it was. But after hearing the autopsy results, I honestly think Chauvin was satisfied with the way it all went down. Only he and God knows how much pressure he was putting on Floyd.