Lee Harvey Oswald was a former U.S. Marine who assassinated United States president John F. Kennedy on November 22, 1963.
Oswald was placed in juvenile detention at the age of 12 for truancy, during which time he was assessed by a psychiatrist as "emotionally disturbed", due to a lack of normal family life. After attending 22 schools in his youth, he quit repeatedly, and finally when he was 17, joined the Marines. Oswald was court-martialed twice while in the Marines, and jailed. He was honorably released from active duty in the Marine Corps into the reserve, then promptly flew to Europe and defected to the Soviet Union in October 1959. He lived in Minsk, Belarus, married a Russian woman named Marina, and had a daughter. In June 1962, he returned to the United States with his wife, and eventually settled in Dallas, where their second daughter was also born.
Oswald shot and killed Kennedy on November 22, 1963, from the sixth floor of the Texas School Book Depository as the President traveled by motorcade through Dealey Plaza in Dallas. About 45 minutes after assassinating Kennedy, Oswald shot and killed Dallas police officer J. D. Tippit on a local street.