What the CIA knew about Lee Harvey Oswald's 1963 visit to Mexico has become one of the most closely guarded secrets in the agency's history.

Only hours after shots rang out in Dealey Plaza on November 22, 1963, U.S. Ambassador Thomas C. Mann told colleagues in the American embassy in Mexico that he was certain Lee Harvey Oswald had not ...

Part of a file from the CIA, dated Oct. 10, 1963, details "a reliable and sensitive source in Mexico" report of Lee Harvey Oswald's contact with the Soviet Union embassy in Mexico City, that was ...

While CIA agents had picked up on Oswald while he was in Mexico City in September 1963 trying to return to the Soviet Union, where he had defected in 1959, they did not pay much attention to him ...

In September 1963, weeks before the assassination of President John F. Kennedy, Lee Harvey Oswald made a now-infamous trip to Mexico City. This brief but puzzling trip fueled countless theories ...

Lee Harvey Oswald was a trained CIA operative, and his American spymasters covered up the secret after he blew John F. Kennedy’s brains out! That long suspected revelation is finally verified ...

Part of a CIA file, dated Oct. 10, 1963, details a report from “a reliable and sensitive source in Mexico” about Lee Harvey Oswald’s contact with the Soviet Embassy in Mexico City.

Lee Harvey Oswald was a KGB associate who was personally instructed by Soviet leader Nikita Khrushchev to assassinate President Kennedy. Sometime shortly thereafter, the Soviets changed their minds… ...

In this combination image, Booking photo of American Marxist and former US Marine Lee Harvey Oswald (1939 - 1963) after he was arrested for assassinating President John F Kennedy in Dallas, 23rd ...

Just a few weeks before killing President John F. Kennedy in November 1963, Lee Harvey Oswald traveled to Mexico City, where he spoke with a KGB officer at the Soviet Embassy, a new document ...

JFK assassin Lee Harvey Oswald ‘worked for CIA’ and lone gunman theory ‘bulls***’, claims expert. Dr Cyril Wecht, who has devoted almost six decades to study of alleged conspiracy, alleges ...