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 the trip. United States Ambassador to the United Nations Adlai Stevenson II gives a contentious speech on what is designated United Nations Day at the Dallas Memorial Auditorium where he is booed and heckled. After the speech, as he is walking to his limo he stops to talk to a loud group of protestors when he is suddenly hit across the face with a picket sign and then spit upon. October 28, 1963: Jerry Bruno flies to Austin, Texas to begin his evaluation of the stops being considered for the Kennedy visit on November 21–22. October 29, 1963: Bruno meets