<P> Lee Harvey Oswald, an employee of the Texas School Book Depository in Dealey Plaza, and a former U.S. Marine with Marxist beliefs, was arrested shortly after at the Texas Theater after agents found his rifle with shell casings on the sixth floor of the Depository . Oswald was originally arrested for killing Dallas Police officer J.D. Tippit after the assassination . At 11: 21 a.m. Sunday, November 24, 1963, while he was handcuffed to Detective Jim Leavelle and as he was about to be taken to the Dallas County Jail, Oswald was shot and fatally wounded in the basement of Dallas Police Headquarters by Jack Ruby, a Dallas nightclub operator who said that he had been distraught over the Kennedy assassination . The shooting by Ruby was televised, as Oswald's transfer was being covered by the media . Oswald was taken unconscious by ambulance to Parkland Memorial Hospital where he died at 1: 07 p.m.. Ruby was convicted of Oswald's murder and died in prison in 1967 . </P> <P> The ten - month investigation of the Warren Commission of 1963--1964 concluded that President Kennedy was assassinated by Lee Harvey Oswald and that Oswald had acted entirely alone . They also concluded that Jack Ruby acted alone when he killed Oswald before he could stand trial . Nonetheless, polls conducted from 1966 to 2004 found that as many as 80 percent of Americans have suspected that there was a plot or cover - up . Doubts and conspiracy theories continue to persist . </P> <Ul> <Li> January 30, 1835: Just outside the Capitol Building, a house painter named Richard Lawrence attempted to shoot Jackson with two pistols, both of which misfired . Lawrence was apprehended after Jackson beat him severely with his cane . Lawrence was found not guilty by reason of insanity and confined to a mental institution until his death in 1861 . </Li> </Ul> <Li> January 30, 1835: Just outside the Capitol Building, a house painter named Richard Lawrence attempted to shoot Jackson with two pistols, both of which misfired . Lawrence was apprehended after Jackson beat him severely with his cane . Lawrence was found not guilty by reason of insanity and confined to a mental institution until his death in 1861 . </Li>

Who was the first president to be attempted to be assassinated
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