Star dead after sex game gone wrong?

He was discovered by a housekeeper, half naked and hanged.

The star's close friend, attorney Vicki Roberts, and his manager Chuck Binder, insisted that he died of natural causes.

The media reported that Carradine may have died attempting auto-erotic asphyxiation - where victims achieve heightened sexual pleasure by restricting their air supply.

The speculation is based on a Thai police report saying, "A rope was attached to his neck and also to his penis".

There was no suicide note and an unnamed officer claimed the death may have been an attempt at auto-eroticism.

The circumstances are similar to those surrounding the unexplained death of Michael Hutchence, the INXS singer who was found hanged in a Sydney hotel room in 1997.