I don’t see it that way.
I see the police attempting to calm the guy down after they’ve restrained him.
I also don’t understand why the autopsy calls this a “homicide” when the cause of death was cocaine (which no one forced him to take) and “the stress associated with physical restraint” (which he brought on himself by struggling with the police).
I do have to wonder why they would give a heavy sedative to a guy who’s obviously passed out and not struggling - but maybe that’s standard operating procedure in these cases, I don’t know.
There was certainly reason to list the death of homicide. What needs to be determined is the degree of culpability on the officers’ part if any. He did not die from the cocaine.
The use of the sedative will certainly be called into question.
The 6story puts most of your assumptions to rest. The cops should have turned guy on his side. A trial may well prove he was suffocated. We will see.