Lee Harvey Oswald (October 18, 1939 – November 24, 1963) was an American who, according to four government investigations, killed John F. Kennedy, the 35th President of the United States, using a firearm in Dallas, Texas, on November 22, 1963.
A former U.S. Marine who had briefly defected to the Soviet Union, Oswald was initially arrested for the shooting murder of police officer J. D. Tippit, on a Dallas street approximately 40 minutes after Kennedy was shot. Suspected in the assassination of Kennedy as well, Oswald denied involvement in either killing. Two days later, while being transferred from police headquarters to the county jail, Oswald was shot and killed by 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, a conclusion also reached by prior investigations carried out by the FBI and Dallas Police Department.