Sad to hear stories like this. Apparently he's been battling a mystery illness for the past couple of years. His doctors haven't been able to figure out what's wrong with him and he's been forced to go outside his hmo to see specialists. His health care bills are adding up and friends set up this site for people who might want to help:

http://www.friendsoftonygilkyson.com/

Figured that there have to be some other fans here and thought I'd pass it along.

Saw him play with X back in 1992. Hell of a guitar player.
Thanks for sharing the story, Billy. This sucks.