Assassination of John F. Kennedy Service follow-up car and its driver's left arm, as well on the motorcycle officers who were riding on both sides of the President just behind his vehicle. Secret Service Special Agent Clint Hill was riding on the left front running board of the follow-up car, which was immediately behind the Presidential limousine. Hill testified that he heard one shot, then, as documented in other films and concurrent with Zapruder frame 308, he jumped off into Elm Street and ran forward to try to get on the limousine and protect the President; Hill testified to the Warren Commission that after he
Timeline of the John F. Kennedy assassination announcement of President Kennedy's death, all three commercial networks suspended their regular programming and commercials for the first time in the short history of television and ran coverage on a non-stop basis for four days. The assassination of President Kennedy was the longest uninterrupted news event in the history of American television until just before 9:00 a.m. EDT, September 11, 2001, when the networks were on the air for 72 hours straight covering the 9/11 terrorist attacks. Once back at Air Force One, and only after Mrs. Kennedy and President Kennedy's body had also returned to the plane, Lyndon Johnson