Well fuck, that's a serious drag. Saw him do stand up in Vancouver about 12 years back and he was brilliant. Depression is a bitch. No matter how successful, how wealthy, how loved, it all doesn't matter if you're not well in the head.
Damn that's sad. I've seen so many of his movies so many times I feel like he was an uncle or something... I even remember seeing Mork and Mindy on primetime TV as a kid...
The world is certainly a less funny place today. ;(