New details about Marilyn Monroe and the Kennedys

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The rumored relationship between President John Kennedy and Marilyn Monroe has been talked about for decades -- but now there may be a new twist to the rumors.

There are intimate details of a reported relationship between President Kennedy, his brother and the Hollywood sex symbol.

Eleven boxes of files owned by Hollywood spy/private investigator Fred Otash that were stocked away in a storage unit in the San Fernando Valley have been reviewed by The Hollywood Reporter.

“This was someone who had wire taps all over town -- was listening to the biggest stars in an era when some of these revelations would be published in magazines,” said Matt Belloni, the executive editor for the Reporter.

“Otash claimed that he had recordings of JFK having sex with Marilyn Monroe. He spoke about this as if it was a common-knowledge thing,” Belloni continued.

Otash worked for members of Hollywood’s elite to dig up dirt on their enemies.  In notes he left behind before his death, Otash allegedly provides salacious details of the long-rumored affairs between Monroe, President Kennedy and his brother, Robert Kennedy.

Otash claims he listed to Monroe having sex with JFK.  And in the hours before her death, Otash says Monroe had a blow-out fight with Bobby Kennedy over their relationship.  He claimed Monroe complained she was being passed around “like a piece of meat.”

Otash claims he heard Bobby Kennedy trying to quiet Monroe down with a pillow so neighbors wouldn’t hear her shouting, but the audio tapes his notes are based on have since disappeared.

“Some of these files that we reviewed contain elements that are not 100-percent verifiable,” Belloni said.  “They are his recollections and his recollections to his daughter -- so what he said and what is actual truth is not necessarily the same.”

Otash was part of the Los Angeles Police Department until 1955 after a falling out with the police chief, so he became gumshoe to the stars, disguising a surveillance van as a TV repair truck.  He helped inspire the fictional detective Jack Nicholson portrayed in the film Noir classic, Chinatown.

“He was someone who moved naturally in Hollywood circles and also kind of in the gray zone between the police, the mob, the private investigators who made Hollywood in the 1950 such an interesting place,” Belloni said.

Otash’s daughter says she released the new information to The Hollywood Reporter in part to defend her father’s reputation.

Erin McPike reports with more in the video above.