Peter Vronsky is an investigative historian, author and a filmmaker. He holds a PhD in criminal justice history and espionage in international relations from the University of Toronto. He is an authority on the history of serial homicide and its investigation while his book based on his doctoral dissertation, 'Ridgeway: The American Fenian Invasion and the 1866 Battle That Made Canada' (2011) is considered as the definitive history of Canada's first modern battle.Vronsky is the author of a series of bestseller true crime histories: Serial Killers: The Method and Madness of Monsters (2004); Female Serial Killers: How and Why Women Become Monsters (2007); Sons of Cain: A History of Serial Killers From the Stone Age to the Present (2018), a New York Times Editors' Choice; and most recently American Serial Killers: The Epidemic Years 1950-2000 (2021), a history exploring the epidemic surge of serial killers in the second half of the 20th century. His books have been translated into French, Spanish, Chinese, Czech, Turkish, Italian, Finnish and Japanese editions.Vronsky directed several feature films, including Bad Company [Fast Company] (1978) and Mondo Moscow (1992) and is the creator of a substantial body of formal video and electronic art works and new media in the 1980s. In a thirty year freelance career he has worked in the motion picture and television industries as a producer and cinematographer in the field of documentary production and news broadcasting with CNN, CTV, CBC, RAI and other global television networks in North America and overseas and in online media and video streaming.Vronsky lectures in the Ryerson University History Department on the history of international relations, terrorism, espionage, American Civil War, Third Reich.