Roy Hazelwood spent twenty-two years in the FBI, sixteen of them as a member of the Bureau's Behavioral Science Unit. He is now associated with the Academy Group, Inc., a forensic consulting firm with clients in government, industry, and the criminal justice system. Hazelwood lives in Virginia with his wife, Peggy.
Stephen G. Michaud has written extensively on criminal justice topics. His previous books include Lethal Shadow, a study of sexual sadism, and The Only Living Witness, an acclaimed portrait of serial killer Ted Bundy that the New York Daily News listed as one of the ten best true-crime books ever.