- Depraved: The Shocking True Story of America's First Serial Killer, the story of Chicago serial murderer Herman Mudgett, alias Dr. H. H. Holmes
- Deranged: The Shocking True Story of America's Most Fiendish Killer!, the story of New York serial murderer Albert Fish
- Fiend: The Shocking True Story of America's Youngest Serial Killer, the story of Jesse Pomeroy, child murderer.
- Bestial: The Savage Trail of a True American Monster, serial murderer Earle Leonard Nelson, who killed in Canada and the United States.
- Deviant: The Shocking True Story of the Original "Psycho", the story of Ed Gein, the killer who inspired Psycho, The Texas Chain Saw Massacre and The Silence of the Lambs
- Fatal : The Poisonous Life of a Female Serial Killer, the story of 19th century murderess Jane Toppan
- A to Z Encyclopedia of Serial Killers (co-written with David Everitt)
- The Serial Killer Files : The Who, What, Where, How, and Why of the World's Most Terrifying Murderers
- Panzram: A Journal of Murder (Introduction)
- "The Devil’s Gentleman: Privilege, Poison, and the Trial that Ushered in the Twentieth Century," New York: Random House/Ballantine Books, 2007.
- "True Crime: An American Anthology," New York: Library of America, 2008.
He is married to Kimiko Hahn