LOS ANGELES, California (CNN) -- David Carradine's wife and his manager disputed suggestions that the actor's death was a suicide, while rescue workers and police in Bangkok, Thailand, said the actor's neck and genitals were found bound with rope.





David Carradine was the star of the 1970s TV series, "Kung Fu," and appeared in more than 100 films.





After Carradine's body arrives back to the United States this weekend, an autopsy ordered by Carradine's family will be conducted, according to the actor's co-manager.





"They're doing everything possible to get to the bottom of what really happened," said Carradine's co-manager Tiffany Smith.





Carradine, 72, became famous in the 1970s when he portrayed the traveling Shaolin monk Kwai Chang Caine in the television series "Kung Fu."





Bangkok police said Carradine was found hanging by a nylon rope in a Bangkok hotel room closet Thursday morning.





"Our preliminary assumption is that the cause of death was suffocation, because there was a rope tied to his neck," said Bangkok police spokesman Somprasong Yenthuam.





Autopsy results will not be available for three or four weeks, said a high-ranking Thai police source who asked not to be identified.





The actor's body was released to the U.S. Embassy for a Saturday flight home after a judge signed the death certificate Friday, the police source said.





A member of the emergency crew who was called to the hotel after a maid found Carradine told CNN that a yellow nylon rope was tied around the actor's neck and a black rope was around his genitals. Police later confirmed that information.





The same emergency crew source said Carradine's hands were not tied, contrary to some media reports. Smith, the co-manager, also said media reports quoting the actor's management saying the hands were tied were untrue.





"I do not know if you want to call it accidental," Chuck Binder, Carradine's manager, told CNN's Larry King on Thursday. He said Carradine's career was on a roll.





Binder said a producer of the movie, "Stretch," which Carradine was to act in, called him from Thailand to tell him what was happening there.





"I do not want to get in the middle of this whole investigation, but this guy said to me for sure there was foul play," Binder said.  Watch Carradine's friends discuss loss »





Actor Michael Madsen told King that the one thing Carradine's wife, Annie Bierman, wanted everyone to know is, "David was not suicidal."





Investigators found no sign of a forced entry into Carradine's room, Bangkok Police Lt. Colonel Pirom Chanpirom said.





Smith would not confirm Friday that Carradine's family had hired private investigators to look into his death, but she did say a private autopsy would be done.





Modern audiences may best know Carradine as "Bill" in Quentin Tarantino's "Kill Bill" films. He earned a 2005 Golden Globe nomination for his role in the second movie in the two-part saga.





Tarantino, also appearing on "Larry King Live," called Carradine one of "Hollywood's great mad geniuses."





"He was a rock star at the time 'Kung Fu' came out," Tarantino said, holding up a vintage metal lunch box with an image from the popular show.  Watch Carradine discuss "Kung Fu" role »





"I'm in shock," he said.





Carradine's career included more than 100 feature films, two dozen television movies and theater work, according to the Internet Movie Database.





"He was clearly an actor who followed his own path," said Leah Rozen, movie critic for People magazine.  See photos of some of his notable roles »





"He was never a guy who talked a whole lot. You knew, as an actor, the characters he played, you knew they had a past, you knew there was probably some unhappiness there, but he wasn't going to talk about it."





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