John F. Kennedy assassination conspiracy theories of the plot was thwarted, the authors allege, because it would have revealed embarrassing evidence of American government involvement with organized crime in plots to kill Castro. A 2003 Gallup poll indicated that nearly 20% of Americans suspected Lyndon B. Johnson of being involved in the assassination of Kennedy. Critics of the Warren Commission have accused Johnson of plotting the assassination because he "disliked" the Kennedys and feared that he would be dropped from the Democratic ticket for the 1964 election. According to journalist Max Holland, the first published allegation that Johnson perpetrated the assassination of Kennedy appeared in Penn
Assassination of John F. Kennedy neck on the right side without striking bone and the other of which entered the skull from behind and destroyed its upper right side. The "United States President's Commission on CIA activities within the United States" was set up under President Gerald Ford in 1975 to investigate the activities of the CIA within the United States. The commission was led by Vice President Nelson Rockefeller, and is sometimes referred to as the Rockefeller Commission. Part of the commission's work dealt with the Kennedy assassination, specifically the head snap as seen in the Zapruder film (first shown to the general public