[fwdude]

From everything I heard, he died during an autoerotic asphyxiation episode.

[fieldmarshaldj]

Nope, that was David Carradine.

[freepertoo]

Poor guy.

[conservative98]

Also noteworthy, according to Williams’ wife, is that he may have learned of the suicide technique from a movie role in which a character Williams portrayed died from autoerotic asphyxiation.

http://wtvr.com/2014/11/07/robin-williams-death-wife-thinks-star-studied-suicide-technique-from-autoerotic-asphyxiation-film-role/