The 72-year-old actor's body was found hanging in a Bangkok hotel room on June 4. Thai authorities continue to investigate his death. A statement released Thursday by a private pathologist said suicide had been ruled out as a cause of death.
Services and the burial were private. Among those seen entering the memorial service were the actor's brother, Keith Carradine, longtime friend Michael Madsen and "Kill Bill" co-star Lucy Liu.
David Carradine rose to fame in the 1970's TV series "Kung Fu" and has appeared in more than 100 films.
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