They vanished without a trace. They killed without remorse. They left behind only questions that haunt us decades later.
What drives a person to become a monster? And why do some monsters never get caught?
Legendary FBI profiler John Douglas takes you inside the cases that changed criminal investigation forever—the ones that are too disturbing to forget and too complex to solve. From serial killers who disappeared into thin air to murders that defied every rule of criminal behavior, these are the cases that made Douglas question everything he thought he knew about the criminal mind.
The Killers Who Got Away
The Zodiac. BTK. Jack the Ripper. Names that still send chills down your spine. Douglas reveals what these killers had in common—and why that terrifies him more than their individual crimes.
The Victims Who Deserve Justice
JonBenét Ramsey. The Black Dahlia. Amber Hagerman. Their stories didn't end with their deaths. Douglas shows how these cases changed the way we hunt killers and protect the innocent.
The Minds That Can't Be Understood
What makes someone kill strangers for pleasure? How do they choose their victims? Why do some stop killing while others never can?
Drawing from face-to-face interviews with history's most dangerous criminals, Douglas exposes the psychological patterns that connect the world's most baffling cases. You'll discover why some killers crave attention while others vanish completely, how childhood trauma creates monsters, and what warning signs everyone missed.
This isn't just another true crime collection. It's a journey into the darkest corners of human nature—guided by the man who's been there and back.
Warning: These Cases Will Stay With You Long After You Close the Book
Perfect for fans of Mindhunter, Criminal Minds, and My Favorite Murder
Some crimes are too shocking to solve. Some killers are too smart to catch. But every case teaches us something about the evil that walks among us.
The truth about these unsolved mysteries is more chilling than any fiction.
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Used availability for John E Douglas's Unforgettable and Unsolved