[[Sam Giancana]] was an organized-crime leader who was contacted by [[Robert Maheu]] in 1960 as part of [[Central Intelligence Agency|CIA]] operations to assassinate [[Fidel Castro]]. Giancana, along with [[Johnny Rosselli]] and [[Santos Trafficante, Jr.]], was enlisted to assist in these efforts, which involved Cuban exiles.[^1] --- ### Footnotes [^1]: Seymour, Cheri. *The Last Circle: Danny Casolaro’s Investigation into the Octopus and the PROMIS Software Scandal*. First Edition. TrineDay, 2010.