Get Back has sent me down a Beatles rabbit hole as of late. I love me some James Taylor too... and reading this kind of retrospective is fairly heartbreaking... but you know... it's what it is.
edit: I did a little more reading... JT is feeling pretty bad about this, and no doubt he gave John some opiates... but it sounds like John's exposure may have pre-dated JT's time in London by a little bit.
Still sucks.
I think James can take it easy on himself. It wasn't the opiates that killed John. And, I don't think it was the opiates that killed the Beatles either. No doubt it contributed, but like any relationship gone bad, if it was just one thing that was the matter, it could have been fixed or managed. I believe it was many things. Also, John was clean when he died. Sometimes you have to go through some shit to get to the other side of the tunnel. Chill JT :) Fire and Rain.