Journey into Darkness

Here are the cases that will always haunt the FBI's premier investigator John Douglas--all with compelling glimpses into the darkest side of human nature.

John Douglas was the founder and head of the FBI's Investigative Support Unit, which was formed in 1980. He retired from the Bureau after twenty-five years of service. In addition to his many nonfiction books, he is the author of two novels featuring FBI profiler Jake Donovan: Broken Wings, and its sequel, Man Down. Please visit him at his Web site: www.johndouglasmindhunter.com. Mark Olshaker is a novelist, filmmaker, and producer of the Emmy-nominated PBS Nova program Mind of a Serial Killer. He has written and produced numerous documentary films and won an Emmy as the writer of Roman City. He lives with his wife in the Washington D.C. area.