Sam &quot;Momo&quot; Giancana was a reputed boss of the Chicago Outfit from 1957 - 1966 after Tony Accardo retired. Among his nicknames included &quot;Mo&quot;, &quot;Mooney&quot; and &quot;Sam the Cigar&quot;. Giancana was brought in connection with the dead of Marilyn Monroe in August 5, 1962, the murder of president John F. Kennedy in November 2 1963, and was called in for help to assassinate the Cuban leader Fidel Castro by the CIA.