So David Carradine hung himself? That's messed up. I used to watch a lot of Kung Fu reruns when I was a kid, and I thought Carradine did a good job more recently in Tarantino's Kill Bill movies. Carradine had this way of sort of combining a sense of mystic, zen-like calm along with a more dangerous, edgy vibe.
Anyway, I'm sorry to hear that the man has passed, and much more sorry to hear that it sounds like it was a suicide.
Here's to hoping the guy has somehow found some peace.