A lot of comedians have psychological problems. Look at John Belushi, Jonathan Winters, Freddie Prinze, Robin Williams, and Red Skelton. I think guilt over his girlfriend's death drove him over the edge, and it was a short drive, anyway.
Well, clearly it was his fault. Can't blame anyone going out with him wanting to reevaluate that poor of a choice.
“Red Skelton”?
I know had had depression after the loss of a son, but that is hardly abnormal.