Conspiracy theorists will be eagerly waiting to pour over thousands of classified files on former US president John F Kennedy's assassination after Donald Trump signed an executive order to release them.
Former marine Lee Harvey Oswald, 24, had positioned himself from a sniper's perch on the sixth floor of the building and fired multiple shots, killing the president, according to the official story.
A year after the assassination, president Lyndon Johnson ordered an investigation into the assassination called the Warren Commission, which concluded that Oswald acted alone and there was no evidence of a conspiracy.
Some critics - including JFK's grandson - have condemned the move, suggesting the president is using the notorious 1963 killing as a "political prop".
Whatever his motives, the president is right; people have waited decades to learn more about the shooting of Kennedy.