time interest of Capone. In late 1930, O'Hare alerted the Intelligence Unit that Capone had hired killers from New York to assassinate Wilson, prosecutor George E. Q. Johnson, and other law-enforcement officials in Chicago. After federal officials moved to foil the plot, they heard that Capone had sent the killers back in hopes of not incriminating himself. However, the existence of these assassins was never substantiated, and some researchers have suggested that the tip about the contract was false, intended to confuse or misdirect federal investigators. After the Treasury Department finally got all the evidence they needed to put an end to Capone, in March and June 1931 a grand jury met in court to decide his fate. The result was that Capone was indicted on 23 counts of tax evasion of over $250,000 of income from 1924 to 1929. Capone was proven guilty and was given an 11-year prison sentence and fined $300,000 in court costs. This was considered an astronomical price to pay for a tax evader at the time. Capone after serving his 11-year sentence at Alcatraz, was released and suffered from syphilis in the brain which led to his death in 1947 at age 48. Without the efforts of Wilson and his team Capone may never have been stopped, or his reign of terror could have gone on much longer. Later career Wilson was part of the team investigating the Lindbergh kidnapping. Some sources indicate that Wilson had insisted on tracking the serial numbers on the gold certificates used as ransom money (which ultimately led to the arrest and conviction of Bruno Richard Hauptmann). Other sources credit Elmer Irey. In 1936, Wilson was named chief of the Secret Service and, resisting attempts by J. Edgar Hoover to transfer the Secret Service to the Justice Department under the jurisdiction of the FBI during the early 1940s, he had nearly eliminated the production and distribution of counterfeit money through a nationwide education program called "Know Your Money" by the time of his retirement in 1947. During his administration, he also initiated practices in presidential security which have since become standard procedure. An article he wrote, Undercover Man: He Trapped Capone, was the basis for the 1949 film The Undercover Man. In the Brian De Palma 1987 film The Untouchables, the character Oscar Wallace (played by Charles Martin Smith) is loosely based upon Wilson. On top of writing Undercover