This is the correct answer. If someone else hadn't helped him overdose, he would have done it himself. If not that night, then the next, or the one after that.
Belushi crashed out , he was then injected with the lethal speedball that killed him !
Tell ya what , let me come round to yours , we party hard , you pass out , fall asleep and I will inject you with a speedball , if you wake up in the morning its all good , if not .. Then I'm up on a murder charge !
Fuck even Cathy smith at the time said , I killed John Belushi !
"Two witnesses that worked at the Chateau Marmont--- the security guard and the maid----- put the LAPD in John's room an hour and a half before Bill Wallace discovered the body. Why were they there? Did Cathy Smith, after leaving with John's car, alert them? Did they discover John already dead? Was the drug bust to happen then? And, the darkest question: did the police murder John for some reason?"