Willard M. Oliver is a professor in the College of Criminal Justice at Sam Houston State. His areas of expertise include policing, public policy of crime and criminal justice, and the history of criminal justice. He is the author of several books, including August Vollmer, Killing Congress, and Killing the President.
Robertson Dean has recorded hundreds of audiobooks in almost every genre. He's been nominated for several Audie Awards, won nine Earphones Awards, and was named one of AudioFile magazine's Best Voices of 2010. He lives in Los Angeles, where he records books and acts in film, TV, and (especially) on stage.