David Carradine took a massive secret to the grave when he was found dead in a Bangkok hotel room.The Kill Bill actor was found naked with a rope tied around his neck, wrists, and genitals in the closet in June 2009 while in the country filming a new movie.It was initially speculated that the 72-year-old, who shot to fame as the star of 1970s series Kung Fu, had taken his own life.However, it soon became clear that there was way more to this heartbreaking tragedy - and the dark mystery may never be solved.Two autopsies both concluded that David's death was not a suicide and the cause of death was widely accepted as "accidental asphyxiation".As more details emerged ABC news reported that the actor "accidentally suffocated in a lone sex.
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