LOS ANGELES (AP) - David Carradine's family members want more answers about his death. They're asking the FBI and a well known independent pathologist for help unravel what happened. Mark Geragos, attorney for the "Kung Fu" actor's half-brother, Keith, says family members aren't happy with Thai investigators and are "profoundly disturbed" by the publication of a forensics photo. Keith Carradine threatened legal action against further distribution of the photo. The FBI confirms that Carradine's family contacted the agency. The family also wants an independent autopsy by famed forensic pathologist Dr. Michael Baden to determine whether another person could have been involved. Thai authorities say they've all but ruled out foul play. Investigators say a chambermaid found Carradine's naked body hanging in a closet in his Bangkok hotel room Thursday. Family, friends and representatives have said they doubt the 72-year-old actor would have killed himself.