Strange but true: The lawyer for recently-deceased actor David Carradine suggested that he might have been killed by a secret sect of the martial arts underworld for probing too far into their actions. Meanwhile, the actor’s family refuses to believe the Kill Bill star died from autoerotic asphyxiation, even though he was found with a rope around his neck, genitals and wrists, the lawyer said on Larry King Live Friday night. They are urging to the FBI to travel to Thailand and uncover the kung-fu fighters’ role in Carradine’s murder. The family is also seeking an independent autopsy from famed pathologist Dr. Michael Baden, and is threatening to sue any media outlets that reprint a photo of Carradine after death. The gruesome image was published by a Bangkok tabloid on Saturday.