From www.nytimes.com- “Kung Fu” actor David Carradine’s family has asked the FBI to investigate his mysterious death in Thailand.

Relatives don’t believe Carradine – found naked in a Bangkok hotel closet with a rope tied to his neck, wrist and genitals – committed suicide.

“They want an investigation,” said Mark Geragos, lawyer for Keith Carradine, brother of the “Kill Bill” star.

“I would think that the people in Bangkok would want to support an investigation and allow the FBI to go over there and assist in the investigation so we can get the answers to the questions.”

Thai police said Saturday they have not been contacted by the FBI.

An autopsy was completed Friday, but results aren’t expected for weeks.

Carradine’s body was flown out of Bangkok early Saturday on a United Airlines flight bound for Los Angeles via Tokyo.

There is speculation the 72-year-old actor died during an act of auto-erotic asphyxiation in which the rope was used to heighten sexual pleasure.

His ex-wife claimed in court papers that he was a fan of “potentially deadly” kinky sex acts.

Marina Anderson’s 2003 filing – which also claimed Carradine and a close relative shared an incestuous relationship – was uncovered by TheSmokingGun.com.

In Los Angeles Superior Court documents, Anderson claimed Carradine groped her in public and encouraged her to flash strangers by pulling off her top.

He also enjoyed the company of “people of questionable character,” the court papers continued.

“It was the continuation of abhorant and deviant sexual behavior which was potentially deadly,” Anderson’s filing said.

In addition, Carradine’s “deviate behavior includes an incestuous relationship with a very close family member, which permeated our marriage,” she wrote.

Anderson said their four-year marriage left her suffering posttraumatic stress disorder, like a soldier returning from a combat zone. Her filing was supposed to be sealed, but was mistakenly placed with public court documents, TheSmokingGun.com reported.