The aim of this paper is to provide answers to whether criminologists can provide appropriate explanation for serial killings. Academic experts and police believe that killing is the rare form of murder, but serial killers are classified as killing three or more people. Psychological interpretation of crime provides a unique view toward criminals. Since they are more interested in the individuals themselves than the surrounding environment, there is a big investment in explaining and classifying consecutive killings.
Many people want to know what is causing disturbing behavior of continuous killers. Most criminologists believe traumatic infancies are experiencing the theory leading directly to the behavior of continuous killers. "Heroes triad" is a feature of serial killer, and it is an important factor in the development of serial killer as a child. "Murder triad" includes bedwetting for children, arson and animal torture and is one of the most common features of serial killers (Newton, 2000, 101). The triad consists of fire, bedwetting, and abusive behavior. The important and most common part of the "killing triad" is arson. John Douglas, a psychoanalyst, believes that a continuous killer of the future is an arsonist for "being fascinated by love for magnificent destruction" (Schechter and Everitt, 282).
But the strange thing that we are continually fascinated by continuous killers is that continuous killing is not very common today. The number of consecutive murderers in the United States has steadily declined since the 1990s. . Twenty years ago, in the United States, massive shooting was done about every three to four weeks every year about six times. (If this number is high, it shows how sensitive we are to collective shoots - only the most terrible things like the recent events in Las Vegas became national coverage.