You know I just went back and re-read the article link I initially started this thread with, and I'm inclined to agree with Sinsull and kat/katlaughing. (But keep in mind that article was written quite a while before he passed away, and it is only from one perspective.)

I did a bit of searching and found more info, including a New York Times Article, and a Bio and an Obituary from Rolling Stone Magazine, that just may fill in some more of the gray areas.