FBI files: Ted Kennedy may have taken part in 'sex parties' with Marilyn Monroe, Frank Sinatra

(N.Y. Daily News) - Secret FBI files claim Ted Kennedy may have taken part in wild "sex parties" with Marilyn Monroe and Frank Sinatra at a swank New York hotel.

The declassified reports also delve into rumors of a mob plot to put him in "compromising situations" with a variety of women - and detail scores of death threats against the late Massachusetts senator, who died last summer.