Sounds like the cause was end stage liver disease secondary to Hepatitis C...

For those whose memory or involvement here may not go that far back, and those who never had the pleasure of making his acquaintance, here's a nice little piece that gives a sense of what he and Moe did with SCOTTY ANN... scroll down to page 3:

http://www.igy-rodneybay.com/media/igy.may.newsletter.issue.8.pdf

Don had a treasure trove of great stories, always told with great panache...

Not to mention, most of them were actually true...