In August 1960, a covert operation to assassinate Fidel Castro was initiated, involving figures such as gangster Johnny Roselli and private investigator Robert Maheu. Despite initial planning, including the development of lethal pills for the assassination, the project was eventually canceled following the Bay of Pigs incident. The operation was marked by secrecy and included attempts to gather intelligence on Roselli, who later faced legal troubles but was not assisted by the agency when threatened with deportation in 1970.