Come to pay my respects. When I was hanging around the forums years ago, he struck me as a really smart guy with a somewhat cynical sense of humor. People like that usually think very deeply, about life and other things.. this is unbelievably tragic.
If you know anyone similar, try to drag them out of their own heads, check up every now and again and bring them along to things, events, places outside. It could make a huge difference.
Sleep peacefully..