John Philpin

John Philpin is the author of Bad Dog, from GenPop Books. An independent criminal profiler and a retired psychologist with an international reputation as an expert on violent behavior, Philpin has appeared on Unsolved Mysteries, America’s Most Wanted, 20/20 Downtown, Inside Edition, and CBC’s As It Happens, and has served as a guest commentator on Court TV’s Prime Time Justice.

Philpin’s published nonfiction works include Shattered Justice (Harper Collins), about the murder of 12-year old Stephanie Crowe; Stalemate (Bantam), about a series of child abductions and murders in the San Francisco Bay area; and Beyond Murder (Onyx/Penguin Books), investigating the Gainesville student murders. He has also written five novels including The Murder Channel and Dreams in the Key of Blue.

A recipient of numerous awards for contributions in murder investigations, Philpin’s forensic work was featured in Philip E. Ginsburg’s Shadow of Death, the investigation of a series of murders along interstate highway corridors of Vermont and New Hampshire in the 1980s. Philpin holds degrees in English, clinical psychology, and forensic psychology from Harvard and Goddard College. His website is