Pressing the cartoid artery for so long is a guaranteed death. It's not just the lack of oxygen, it's the heart shutting down because of the restricted blood flow to the brain. In karate one knifehand strike in the right place can knock people out. Thinking of Floyd's death now - given the police is trained in such basics, it indeed looks like a murder.
That's exact;y what I mean; I trained a few times with NYPD and marine judokas and safety of your partner is rule #1. What I did notice is that when technique broke down they tended to become reckless and a danger for others.
Doesn't apply on the streets. Again, it was a lynching, without a rope. Forensically speaking.
That cop knew exactly what he was doing. No doubt about it.