He saw four men in the area between his tower and Elm Street .
Lee Bowers , a railroad switchman who was sitting in a two - story tower , had an unobstructed view of the rear of the stockade fence atop the grassy knoll during the shooting .
Lee Bowers saw four men in the area between Lee Bowers ' tower and Elm Street .
Lee Bowers , a railroad switchman who was sitting in a two - story tower , had an unobstructed view of the rear of the stockade fence atop the grassy knoll during the shooting .