In the early 1960s, two top gangsters, Johnny Roselli and Sam Giancana, were hired by the CIA to kill Cuba’s Communist leader, Fidel Castro, only to wind up murdered themselves amidst Congressional hearings and a national debate about the JFK assassination.

My guest, journalist Thomas Maier, is the author of "Mafia Spies: The Inside Story of the CIA, Gangsters, JFK, and Castro, " which will debut as a Paramount Plus docuseries on July 16. In this interview he talks about the plot to kill Castro, the moment when J Edgar Hoover learns about the assassination attempts, his thoughts on President Kennedy's assassination, the murders of Giancana and Roselli, and much more.

The author's website: http://www.thomasmaierbooks.com/

Buy the book on Amazon here: https://www.amazon.com/Mafia-Spies-Inside-Gangsters-Castro/dp/151077890X

Watch the Mafia Spies docuseries trailer here: https://www.youtube.com/watch?v=5c3AgTFSNkk

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350: Mafia Spies w/ Thomas Maier - A True Crime History Podcast