I honestly don't know how you could mentally wiggle yourself into thinking that 8:45 seconds of someone being on your neck could have an alternative cause of death. Hell, but let's say it was something else. Let's say it was actually a heart attack that ultimately did him in. Does that matter? Surely, we can point towards the stress of having someone on your neck for almost 10min as a contributor...?
Honestly, I'm baffled by the mental gymnastics.
Alternatively another technique locks the neck between the foot and the knee and again you aren’t supposed to put your weight on the neck unless you want to kill the person.
Untrained cop on a power trip using improper technique to subdue a person for a fucking forever and a half is a recipe for disaster.
BTW I would bet on most cops not knowing how to perform this properly the only reason you usually don’t have casualties and fatalities is due to the fact that they only hold the suspect in submission for a few seconds until they are cuffed or until their partner arrives to hold them down not like 10 min or what ever that it was.