1963 – In the first live, televised murder, Lee Harvey Oswald, the assassin of President John F. Kennedy, is murdered two days after the assassination, by Jack Ruby in the basement of Dallas police department headquarters
. Lee Harvey Oswald (October 18, 1939 – November 24, 1963) was the sniper who assassinated John F. Kennedy, the 35th President of the United States, on November 22, 1963. According to five U.S. government investigations, Oswald shot and killed Kennedy as he traveled by motorcade through Dealey Plaza in the city of Dallas, Texas. Oswald was a former U.S. Marine who defected to the Soviet Union in October 1959. He lived in the Soviet Union until June 1962, at which time he returned to the United States. Oswald was initially arrested for the murder of police officer J. D. Tippit, who was killed on a Dallas street approximately 45 minutes after President Kennedy was shot. Oswald would later be charged with the murder of President Kennedy as well but denied shooting anybody, claiming he was a patsy. Two days later, while being transferred from police headquarters to the county jail, Oswald was shot and mortally wounded by Dallas nightclub owner Jack Ruby in full view of television cameras broadcasting live. In 1964, the Warren Commission concluded that Oswald acted alone in assassinating Kennedy, firing three shots. This conclusion was supported by prior investigations carried out by the Federal Bureau of Investigation, the Secret Service, and Dallas Police Department. Despite forensic, ballistic, and eyewitness evidence supporting the lone gunman theory, public opinion polls taken over the years have shown that a majority of Americans believe that Oswald did not act alone, but conspired with others to kill the president, and the assassination has spawned numerous conspiracy theories.