President John F. Kennedy was assassinated on November 22, 1963, in Dallas, Texas, while riding in a presidential motorcade through Dealey Plaza. The shots that killed him were fired from the Texas School Book Depository by Lee Harvey Oswald, a former U.S. Marine who had briefly defected to the Soviet Union
. After the assassination, Oswald was arrested and charged with the murders of Kennedy and a Dallas police officer, J.D. Tippit, whom he also shot and killed shortly after the assassination. However, Oswald never stood trial because two days later he was fatally shot by Jack Ruby, a Dallas nightclub owner, while being transferred between jails
. The official investigation by the Warren Commission concluded that Lee Harvey Oswald acted alone in assassinating President Kennedy. The FBI, after extensive investigation involving thousands of interviews and leads, also supported this conclusion
. Despite the official findings, numerous conspiracy theories have persisted over the years, but no conclusive evidence has overturned the Warren Commission's determination that Oswald was the lone assassin
. In summary, Lee Harvey Oswald killed John F. Kennedy according to the official investigations and historical records.