I'm just being blunt, so you don't get to confuse people, with your minced words. His death was due to drugs and a weak heart. Had nothing to do with a knee in his back, or any injections the medics (may) gave him, as you alluded.
Honestly, I get to do (post) whatever I want. A 'powerful' sedative was injected by the EMT without knowledge of what drugs and in what quantity were already in Tony's system. It's stated he was potentially high on drugs as well as off his meds. And at the time of the injection, based on the video, Tony was already either unconscious or semi-conscious. There's no reason for me to 'allude' to anything, these facts speak for themselves.