The Unknown Darkness: Profiling the Predators Among Us

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.