Thanks for the post link, watched the whole thing, timed it too, the Ambulance arrived and checked his carotid twice, also, it was not blood from his nose, it was saliva from his mouth.
If he died, I am convinced it was from a heart attack, but I see no evidence of the fact by anyone on the scene.
The officers main weight was on his other leg not the neck, and the narrative was from the people on the street.
The Paramedic did not instruct the officer to remove his knee either time. It was not until the stretcher was in place that the Medical personnel instructed the officer to move, which he did immediately. In fact, he assisted putting him on the stretcher.
So, If he did not have a pulse, why would it not be conveyed to the officer either of the two times? He could have passed out as well. No indication he was dead that I saw.
Again, thanks for posting the video