[[None of this would have happened if a career felon who was high on drugs and had serious health issues hadn’t resisted arrest.]]
Bingo- The police did follow procedure- while waiting for ambulance to show up- which was nearly there-
Its my understanding there is bodycam video. If it indeed exists then it is interesting it hasn’t leaked out. If it reinforced the common narrative it would be out. If it doesn’t you won’t see it until trial.
Another point there are images out there on the Internet of French, German and other police using a similar technique in subduing a uncooperative subject. Arrest is stressful if you have underlying conditions that stress could be enough.
The secret sauce is don’t do things to get arrested.