The assassination of John F. Kennedy, the 35th president of the United States, on November 22, 1963, has spawned numerous conspiracy theories. These theories allege the involvement of the Central Intelligence Agency (CIA), the Mafia, Vice President Lyndon B. Johnson, Cuban prime minister Fidel Castro, the KGB, or some combination of these individuals and entities. Some conspiracy theories have alleged a coverup by parts of the American federal government, such as the original investigators with…