Initial results of a secondary autopsy performed on David Carradine suggest the late actor died of auto-erotic asphyxiation.
The Kill Bill star, 72, was found dead, hanging in the closet of his Bangkok hotel room on Thursday (04Jun09).
Some local reports suggested he committed suicide, while Thai police believe he died accidentally as he took part in a dangerous sex game involving auto-erotic asphyxiation - where victims achieve heightened sexual pleasure by restricting their air supply.
The actor's family requested officers from America's Federal Bureau of Investigation (FBI) get involved in the case last week (ends05Jun09), urging U.S. authorities to assist the local police investigation to prove the star had no intention of killing himself.
And forensic specialist Dr. Michael Baden, who was hired by the actor's family to examine Carradine's body in his native America, appears to have found evidence backing up the Thai police findings, reports the New York Post.
An initial autopsy report carried out by Thai coroners reveals Carradine died from a sudden lack of oxygen; while his body showed no signs of struggle.
Baden has refused to comment on the case.