http://news.ycombinator.com/item?id=2074109
Tumblr: http://www.tumblr.com/tagged/suicide?before=1294400750
Scribd: http://www.scribd.com/doc/46479466/Bill-Zeller-Suicide-Note
Also, his twitter account is alive (his last tweet is from last year): http://twitter.com/billzeller
http://news.ycombinator.com/item?id=2074109