 In his memoir, "Bound by Honor", Bill Bonanno, son of New York Mafia boss Joseph Bonanno, stated that he realized that certain Mafia families were involved in the JFK assassination when Ruby killed Oswald, since Bonanno was aware that Ruby was an associate of Chicago mobster Sam Giancana.In 1979, fifteen years after the Warren report, the House Select Committee on Assassinations undertook a similar investigation of Ruby and said that he "had a significant number of associations and direct and indirect contacts with underworld figures" and "the Dallas criminal element" but that he was not a "member" of organized crime.Ruby was known to have been acquainted with both the police and the Mafia.