Sixty years later, many still wonder if Oswald really killed Kennedy, and, if he did, whether or not he acted completely alone. Wikimedia Commons Mugshot of Lee Harvey Oswald taken on November 23, 1963, one day after the assassination of President John F. Kennedy. But, if not Oswald, who did kill JFK? Here’s everything we know about the enduring mystery of JFK’s brain. Inside Kennedy’s Assassination And Autopsy The saga of John F. Kennedy’s brain begins on the day he was killed. On November 22, 1963, the president was assassinated while being driven through Dallas, Texas. After puzzling over the question of who killed JFK — if not Lee Harvey Oswald — see some of the most haunting photos from the Kennedy assassination. Then, learn about the four men in American history who assassinated a president. Instead, Garrison alleged that the president had been killed by the CIA to prevent him from ending the war in Vietnam and making peace with the Soviet Union. But though Garrison publicly accused several people of conspiring to kill the president, his investigation went nowhere. Many dismissed him as an attention seeker and a fraud. After reading about JFK Jr.’s death, go inside some of the most intriguing facts about President John F. Kennedy’s assassination. Then, discover the tragic story of Rosemary Kennedy, the president’s sister who was lobotomized and institutionalized. After reading about JFK Jr.’s plane crash, go inside some of the most convincing theories about who killed JFK — if it wasn’t Lee Harvey Oswald. Or, discover the tragic stories of Arabella Kennedy, JFK’s stillborn daughter, and Rosemary Kennedy, JFK’s forcibly lobotomized sister. The story of JFK’s infidelities didn’t start with Mary Pinchot Meyer, but it may have ended with her — if only because he was assassinated in November of 1963, about a year before Meyer would be killed. Shortly before his assassination, John F. Kennedy penned a letter to her imploring her to visit him. Investigative journalist Dorothy Kilgallen was probing the John F. Kennedy assassination when she suddenly died under strange circumstances on November 8, 1965. Santo Trafficante Jr. claimed to have orchestrated JFK's assassination and was a part of a CIA plot with the mob to kill Fidel Castro. Here's why many doubt the official story of who killed him. From the moment CBS News broadcaster Walter Cronkite lowered his glasses on November 22, 1963, and told the American public that President John F. Kennedy was dead, the same question has echoed in the minds of countless people throughout the U.S. and around the world: who killed JFK?.