The world knows Sam Giancana, aka Momo, as Chicago’s most powerful mob boss after Al Capone. Now, the true life and death of Sam Giancana is revealed in Momo: The Sam Giancana story. Working with the Giancana family, filmmakers unveiled Momo to be a U.S. Government operative for the CIA and FBI, and the dramatic relationship between Giancana and the Kennedy family.