(032883) McCrary, Gregg O. The Unknown Darkness: Profiling The Predators Among Us. New York: William Morrow, 2003. 2nd Printing. Hardcover. 8vo. 324 pages. Very Good+ in Fine DJ. B&W Photographs. Two pages have vertical creases, probably done at bindery.A behind-the-scenes account of America' s most disturbing and complex serial killer and murder investigatio ns by a famous FBI profiler ISBN: 0060509570 (Serial Murders)
