Fetish expert: 'Carradine was not alone'

The director of a documentary on fetishistic sex has suggested that David Carradine could not have been alone when he passed away.

Robert Dunlap, who helmed 2002 film Beyond Vanilla: An Unforgettable Journey Into The Wilder Side Of Sex, told ABC News that it seemed unlikely that Carradine was by himself at the time of his death.

Dunlap said: "The thing that I am really questioning is, how was he bound, and how was he able to tie his own hands?

"This doesn't look like a solo act at all. In order to have an orgasm, his hands would have had to be free. There is something very peculiar about this."

Regarding leaked photographs that allegedly show the actor in women's clothing, he added: "You don't dress just for yourself.

"Usually there is some sort of show and someone else is involved. It probably went horribly bad and they left."

However, clinical associate professor of psychiatry Dr Martin Kafka told the news provider that everything reported on the incident to date was consistent with auto-erotic asphyxia.