Presidency of John F. Kennedy killed Oswald due to his own grief over Kennedy's death, but the assassination of Kennedy and the death of Oswald gave rise to enormous speculation that Kennedy had been the victim of a conspiracy. Kennedy was succeeded as president by Lyndon Johnson, who stated on November 27 that "no memorial or oration or eulogy could more eloquently honor President Kennedy's memory than the earliest possible passage of a civil rights bill for which he fought so long." President Johnson created the Warren Commission—chaired by Chief Justice Earl Warren—to investigate the assassination. The Warren Commission concluded that Oswald acted alone in
John F. Kennedy assassination conspiracy theories the 1990s when the Assassination Records Review Board—which was created when Congress passed the JFK Records Act—requested access to Secret Service records. The Review Board was told by the Secret Service that in January 1995, in violation of the JFK Records Act, the Secret Service destroyed protective survey reports that covered JFK's trips from September 24 through November 8, 1963. The House Select Committee on Assassinations wrote: "The committee believes, on the basis of the evidence available to it, that anti-Castro Cuban groups, as groups, were not involved in the assassination of President Kennedy, but that the available evidence does