Peter Vronsky, PhD, is an investigative historian and a former film and television documentary producer. He is the author of Serial Killers: The Method and Madness of Monsters; Female Serial Killers: How and Why Women Become Monsters; and Sons of Cain: A History of Serial Killers from the Stone Age to the Present. He is an authority on Canada's first modern battle, which he has written about in his definitive book, Ridgeway: The American Fenian Invasion and the 1866 Battle That Made Canada.
Peter Vronsky holds a PhD from the University of Toronto in the fields of criminal justice history and the history of espionage in international relations. He teaches history at Ryerson University in Toronto. He divides his time between Toronto, Canada, and Venice, Italy.