Who knows what state p stone was at?
Maybe he was really fucked up and made a bad choice? Or he wasn't, and still made a bad choice?
Still, Corey did kill him unintentionally, not refutable and deserves whatever comes his way IMO.
But yeah, that's gotta be tough on a psychological level to not only play a part in killing your friend but knowing he was a father and a husband
My wife's cousin accedentally shot his gramma in the head when he was around 6 years old. He's 39 now and it still haunts him very badly