During a nine-year stint in Indiana state prisons for a 1924 holdup, Dillinger learned the craft of bank robbery from his fellow inmates. After being paroled in 1933, he went on to commit five bank robberies in four months. Captured by police yet again, Dillinger escaped jail twice and was named "public enemy number one" by the Federal Bureau of Investigation (FBI). His run came to an end when FBI agents shot him to death outside a Chicago theater. Who lured Dillinger to the ambush site?