From a hypothetical standpoint, what do you think Derek Chauvin was thinking when he spent 9 minutes with his knee on George Floyd's neck?

I’ve been watching the Derek Chauvin trial. Every time they show the video of the 9 minutes he spent with his knee on George Floyd’s neck, it’s baffling to try to imagine what he was thinking. George Floyd was saying he couldn’t breathe, bystanders were calling for him to check George Floyd’s pulse, three police officers had their weight on George Floyd and he was handcuffed so he was not going anywhere. Derek Chauvin had his hands in his pockets so if, by chance, someone did attack him (as has been suggested by the Defense), he would not have been in a physical position to catch his fall with his hands. Even when Paramedics arrived, Derek Chauvin did not take his kneed off George Floyd’s neck.

I wouldn’t expect someone to treat their dog the way Derek Chauvin treated George Floyd.

He had 9 minutes to rethink his actions and stop, and yet he didn’t.

What do you think he might have been thinking?