Almost 40 years after his death following a bar brawl in Key Biscayne, Ricardo Morales, known as "Monkey" contract CIA worker, anti-Castro militant, counter-intelligence chief for Venezuela, FBI informant and drug dealer " returned to the spotlight Thursday morning when one of his sons made a startling claim on Spanish-language radio: Morales, a sniper instructor in the early 1960s in secret camps where Cuban exiles and others trained to invade Cuba, realized in the hours after President John F. Kennedy was assassinated in Dallas in 1963 that the accused killer, Lee Harvey Oswald, had been one of his sniper trainees. Morales also told his two sons that two days before the assassination, his CIA handler told him and his "clean-up" team to go to Dallas for a mission. But after the tragic events, they were ordered to go back to Miami without learning what the mission was about. The claims ... add to one of the long-held theories about the JFK assassination " that Cuban exiles working for the CIA had been involved. But the claims also point the finger at the CIA, which some observers believe could help explain why President Joe Biden backed off last week on declassifying the remaining documents in the case. Morales Jr. said his father told them he did not know of the plans to assassinate Kennedy. "He knew Kennedy was coming to Dallas, so he imagines something is going to happen, but he doesn't know the plan," he said. "In these kinds of conspiracies ... nobody knows what the other is doing."