A rope “tied to [his] neck and genitals” suggests that poor David Carradine died from “accidental suffocation,” according to this news story. Yeah, okay, but the term is autoerotic asphyxiation. It refers to “intentionally cutting off oxygen to the brain for purposes of sexual arousal. It is also called asphyxiophilia, autoerotic asphyxia, scarfing or kotzwarraism. Colloquially, a person engaging in the activity is sometimes called a gasper.”