John E. DouglasJohn Douglas has coauthor, with Mark Olshaker, numerous bestselling books including MINDHUNTER, JOURNEY INTO DARKNESS and ANATOMY OF MOTIVE (0684860813) published in February 2000. He is a highly respected criminal personality profiler and is the auhor of various articles and presentations on criminology. Mark Olshaker, in addition to his work with John Douglas, is an award-winning novelist and filmmaker. Read More Read Less