The Killers Among Us: Examination of Serial Murder and Its Investigations
Definition of a Serial Killer: A series of two or more murders, committed as separate events usually, but not a/ways, by one offender acting alone. The crimes may occur over a time ranging from hours to years. Quite often the motive is psychological, and the offender's behavior and the physical evidence observed at the scene will reflect sadistic and sexual overtones.
What is most disturbing about this book is how hard it would be to recognise a serial killer and how nasty is could be if you were ever to be the focus of attention of a serial killer.
Not recommended for anyone who gets anxiety over such things.