Prohibition caused a crime wave which engulfed Minneapolis and St. Paul in the l920's and 30's. Profits from bootlegging financed gambling and prostitution. Minneapolis journalist Walter Liggett was killed after he reported public officials profitting from the crime. Press accounts said Liggett was killed because he tried to blackmail the bootleggers. One of the eyewitnesses to his murder in l935 was his ten year old daughter, Marda. She's written a book describing how powerful enemies conspired to stop her father's work.