Lee Harvey Oswald (October 18, 1939 – November 24, 1963) was a U.S. Marine veteran who assassinated John F. Kennedy, the 35th president of the United States, on November 22, 1963. Oswald was placed in juvenile detention at age twelve for truancy, during which he was assessed by a psychiatrist as "emotionally disturbed" due to a lack of normal family life. He attended twelve schools in his youth, quitting repeatedly, and at age seventeen he joined the Marines, where he was court-martialed twice ...