What has happened to David O'Toole?

Update: he linked me to this restatement on #lisp: http://cryptome.org/0005/dod-lisp-sol.htm

Does anyone know what has happened to David O'Toole?  He hasn't been heard of since a last curious post to the lisp-games-dev mailing list: http://lists.common-lisp.net/pipermail/lisp-game-dev/2011-July/000158.html (read the whole thread)

His website, blog, twitter and github have all been either removed or cleared:

• http://lispgamesdev.blogspot.com/
• http://twitter.com/dto1138
• http://github.com/dto