with Oswald and Ferrie. One such witness is Willie O'Keefe, a male prostitute serving five years in prison for solicitation, who says that he witnessed Ferrie talking with a man called "Clay Bertrand" about assassinating Kennedy, and that he briefly met Oswald. Garrison and his team theorize Oswald was an agent of the CIA and was framed for the assassination. In 1967, Garrison and his team talk to several witnesses, including Jean Hill, a teacher who says she witnessed a gunman shooting from the "grassy knoll", a small hill, that Secret Service threatened her into saying three shots came from the Texas School Book Depository from which Oswald was said to have shot Kennedy, and her testimony was altered by the Warren Commission. Garrison's staff also test fire an empty rifle from the Depository and conclude that Oswald was too poor a marksman to make the shots, and that there was more than one shooter. Garrison comes to believe that "Bertrand" is really New Orleans businessman Clay Shaw. Garrison interviews Shaw, who denies having ever met Ferrie, O'Keefe or Oswald. Some key witnesses become scared and refuse to testify while others, such as Ruby and Ferrie, die in suspicious circumstances. Before his death, Ferrie tells Garrison that there was a conspiracy to kill Kennedy. Garrison meets a high-level figure in Washington D.C. who identifies himself as "X". He suggests a coup d'état at the highest levels of government, implicating members of the CIA, the Mafia, the military-industrial complex, Secret Service, FBI, and then-Vice President Lyndon Johnson as either co-conspirators or as having motives to cover up the truth of the assassination. X suggests that Kennedy was killed because he wanted to pull the United States out of the Vietnam War and dismantle the CIA. X encourages Garrison to keep digging and prosecute Shaw. Soon afterward, Garrison indicts Shaw with conspiring to murder Kennedy. Some of Garrison's staff begin to doubt his motives and disagree with his methods, and leave the investigation. Garrison's marriage is strained when his wife Liz complains that he is spending more time on the case than with his own family. After a sinister phone call is made to their daughter, Liz accuses Garrison of being selfish and attacking Shaw only because of his homosexuality. In addition, Garrison is criticized in the media as wasting taxpayer money to investigate a conspiracy theory. Garrison suspects a connection with