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
The Girl in the Limousine (play) the initial version of the play and offered it to producer Al Woods, who had previously produced "Up in Mabel's Room", a play Collison co-wrote with Otto Hauerbach. Woods gave it to Avery Hopwood for revisions. The play was initially titled "Betty's Bed", but was changed for production to "The Girl in the Limousine", despite the fact that no female character is in a limousine at any time during the story. The play's Broadway opening was at the Eltinge 42nd Street Theatre on October 6, 1919. John Cumberland and Doris Kenyon starred as Tony and Betty. It ran on Broadway