Last show I saw them was at RHL. Reviewers and fans commented he seemed to be in a mood, which affected small moments in the show, but then one mentioned he had not been feeling well in the past couple of years, and had started to step away somewhat. (think I remember that correctly?) Happy to have the opportunity to see them. (thanks, Seth!) Definitely sad, so young. Their music was a big part of a certain period in my life. Always, as well as others I know, including musicians, had respect for their music and roles in their genre.
edit: other articles posted today mention him not feeling well at shows back in '09 - RHL show.
(wml - no regrets - sounds like you saw some really good shows)