North demystifies the most infamous crime of the twentieth century, arguing that President John F. Kennedy was assassinated in Dallas by Mafia contract killers hired by Louisiana mob boss Carlos Marcello. Critical characters emerge in the plot to murder JFK: Henry Wade, the long-time district attorney turned corrupt; Lyndon B. Johnson himself, who, while a senator in the 1950s, accepted bribes from the mob; corrupt FBI director J. Edgar Hoover; and more. In late 1961, U.S. Attorney General Robert Kennedy and his brother John, initiated a covert Organized Crime Task Force investigation of the Civello mob in Dallas with the understanding that destroying the Dallas Mafia would also destroy LBJ. Johnson, through Wade and other local federal officials he had placed in power, learned of the plan and cooperated with the Civello mob to have JFK killed. North's conclusions are based on classified federal documents.