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
John F. Kennedy assassination conspiracy theories no evidence that the Soviet Union was involved in the assassination of President Kennedy. The House Select Committee on Assassinations also wrote: "The committee believes, on the basis of the evidence available to it, that the Soviet Government was not involved in the assassination of President Kennedy". According to some conspiracy theorists, the Soviet Union, with Nikita Khrushchev motivated by having to back down during the Cuban Missile Crisis, was responsible for the assassination. According to a 1966 FBI document, Colonel Boris Ivanov—chief of the KGB Residency in New York City at the time of the assassination—stated that it was