While "Mass murder" refers to the murder of several people at the same time, "serial murder" describes several killings by the same perpetrator in a repetitive pattern. Usually these incidents count a high toll of victims and create significant anxiety in the public. Yet, the rate of finding murderers in these cases is relatively very low, especially in serial murders; that is if they are ever caught at all. Arnon Edelstein examines the various categories of mass murder and serial murder and suggests a new category: "mass-serial murder". He presents and criticizes the most up-to-date research and theoretical literature in the field and suggests an integrative theoretical model. This groundbreaking volume is intended for criminologists, psychologists, sociologists, students, and readers who are interested in truly understanding the complicated aspects of this fascinating field of investigation.