This book brings together all of what we know, what we think we know, and what we don't know about the horrific violence of serial murder. Part I introduces the subject of serial murder and presents the "six myths" of serial murder that interfere with understanding and successful investigation. Part II presents detailed case studies of four infamous serial killers, John Wayne Gacy, Ted Bundy, Kenneth Bianchi and Henry Lee Lucas. Part Ill focuses on the investigation of serial murder, showing the problems law enforcement faces -- notably "linkage blindness", the inability of unwillingness of police agencies to share information on unsolved murders. This section includes an extensive discussion of fourteen different police responses to serial murder. Finally, the author -- a noted criminologist and former homicide investigator -- discusses the future of serial murder and its investigation. Students of criminology, psychology and sociology; true crime buffs; mystery writers and readers; journalists; skeptics; and criminal justice professionals.