https://www.youtube.com/watch?v=vT66U_Ftdng
Check the above video. If he was asphyxiated, how could he still be breathing at least three minutes into the video. One of the police officers checks his pulse multiple times before the EMT arrives. When the EMT arrives, the first thing she does is check for his pulse. She also checks for respiration twice, the last time right before he is put on the stretcher.
The guy kept saying I can’t breathe. That would be your clue to stop choking him and try to help him. But of course the ME who probably does not know as much as some freepers said he died from being choked.