<p>A former Supervisory Special Agent for the FBI discusses the harrowing competition between the agency and the individuals they seek to capture, describing ten cases to explore the strengths and pitfalls of modern criminal investigation.</p>

The Unknown Darkness: Profiling the Predators Among Us

Politics & Social Sciences

Katherine Ramsland

Gregg O. McCrary

Social Sciences

William Morrow

The Unknown Darkness

Biographies & Memoirs

True Crime

From one of the country's preeminent criminal profilers comes this gripping, behind-the-scenes account of America's most disturbing & complex serial killer & murder invest. Takes us into the minds of the nation's shrewdest & most sinister predators. Digs beneath the crime scene to examine in first-person detail the competition between the country's dangerous killers & the  professionals who are determined to get them off the streets. McCrary served in the elite force for criminal invest., profiling criminals for over 25 years in more than 1,000 cases involving homicide, serial murder, kidnaping, & sexual assault. He takes us inside his process on some of his most fascinating cases. Includes accounts of his most frightening manhunts. Photos.

Diane Pub Co.

See the best price to sell, buy, or rent books by Gregg O. McCrary. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by Gregg O. McCrary