Without Trace – Ireland's Missing: Profiling the Disappearances of Men, Women and Children in Ireland since 1970

Missing, Presumed

Cold Case Files Missing and Unsolved: Ireland's Disappeared: The Cold Case Files

American Predator: The Hunt for the Most Meticulous Serial Killer of the 21st Century

Missing: The Unsolved Cases of Ireland's Vanished Women and Children

Serial Killers: Horrifying True-Life Cases of Pure Evil

World's Worst Crimes

Lifers: Ireland's evil killers and how they were caught

Helter Skelter: The True Story of the Manson Murders

The World's Worst Serial Killers: Monsters whose crimes shocked the world

The Anatomy Of Motive: The Fbis Legendary Mindhunter Explores The Key To Understanding And Catching Vi

Psycho USA: Famous American Killers You Never Heard Of

The World's Worst Psychopaths: The Most Depraved Killers In History

Unmasked: My Life Solving America's Cold Cases

Hard Cases – True Stories of Irish Crime: Profiling Ireland's Murderers, Kidnappers and Thugs

I'll Be Gone in the Dark: The #1 New York Times Bestseller

The Killer Book of Serial Killers: Incredible Stories, Facts and Trivia from the World of Serial Killers

The Red Ripper: Inside the Mind of Russia's Most Brutal Serial Killer

Whoever Fights Monsters: My Twenty Years Tracking Serial Killers for the FBI