David Witwer is a professor of history and American studies at Penn State Harrisburg and the author (with Catherine Rios) of Murder in the Garment District (The New Press) as well as Corruption and Reform in the Teamsters Union and Shadow of the Racketeer. Witwer also worked in the Labor Racketeering Bureau of the New York County District Attorney’s Office and served as a staff researcher at the New York State Organized Crime Task Force.