Date of birth : June 15, 1908, Chicago, Illinois.
Date of death : June 19, 1975, Oak Park, Illinois.
Place of living Oak Park, Illinois.
Occupation gangster of Chicago.
Member of the Mafia, most often associated with the conspiracy theory about Marilyn's death. Client of the Pucini restaurant, in Los Angeles, which belonged to Frank Sinatra, Peter Lawford and Milton Rudin.
Client of the Pucini restaurant, in Los Angeles, which belonged to Frank Sinatra, Peter Lawford and Milton Rudin.
He owned the "Thunderbird" in La Habana, Cuba, which was managed by Paul Skinny D'Amato, who became, in 1960, manager of the Cal Neva Lodge.
According to "Double Cross" ( a biography written by his godson and his young brother), he was at the Cal Neva Lodge the last week-end of Marilyn's life. She would have told him about all her problems with Robert Kennedy and the way he would have dropped her. Giancana would have given her a sexual comfort.
The following week, two killers, Needles and Mugsy, would have followed Robert Kennedy to Marilyn's house; they would have heard the two lovers having an argument, then, after Robert Kennedy's leaving, they would have administrated the lethal dose of barbiturates to Marilyn, in the form of suppositories; their motive was to make Robert Kennedy accused of murder, in order to leave Giancana alone.
Anthony Summers quotes a note from the FBI dated from July 1961, in which Giancana threats to talk about the Kennedy's brothers love affairs, of which he had known from his friend Phyllis McGuire and Peter Lawford.
Another version of this theory was published in the National Enquirer magazine in March 1998,
declaring that Giancana had been hired by the CIA to kill Marilyn,
in order to prevent her from making some revelations about the CIA.
Since, Giancana has been involved in other conspiracies initiated by some governmental organizations, including the FBI.
In 1975, he was shot by a bullet on the back of his head while he was under the FBI security, just before testifying at the Congress.
Bibliography"Double Cross", Sam and Chuck Giancana, New York, Warner Books, 1992.