A heart attack won’t kill him, a fentanyly overdose with a meth kicker won’t kill him but it is the cops fault. Groovy.
A heart attack AND a fentanyl overdose (though no overdose was identified) AND kneeling on his neck for almost nine minutes would kill him. The officer was responsible for one of those actions so yeah, the death was his fault. Not sure why that's so hard for you to comprehend.