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The Unknown Darkness: Profiling the Predators Among Us - McCrary, Gregg O, and Ramsland, Katherine M

Drawing on more than 1,000 cases, a former FBI profiler takes the reader behind the crime scene to examine in raw, first-person close-up, the lethal competition between America's most dangerous predators and the dedicated souls who pledge to put them away.

The Unknown Darkness: Profiling the Predators Among Us 2004, HarperTorch

ISBN-13: 9780060509583

Mass-market paperback

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The Unknown Darkness: Profiling the Predators Among Us 2003, William Morrow & Company, New York, NY

ISBN-13: 9780060509576

Hardcover

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