Assassination of John F. Kennedy or completely stop, the Warren Commission — based on the Zapruder film — found that the limousine had traveled an average speed of 11.2 miles per hour over the 186 ft of Elm Street immediately preceding the fatal head shot. Within one second of each other, President Kennedy, Governor Connally, and Mrs. Kennedy all turned abruptly from looking to their left to looking to their right, between Zapruder film frames 155 and 169. Connally, like the President, was a World War II military veteran but unlike him, a longtime hunter. Connally testified that he immediately recognized the sound as that
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