The United States Federal Bureau of Investigation goes into much great detail about the specific on what makes a killer serial. In its post on serial murder, the FBI mentions that “The term ‘serial killings’ means a series of three or more killings, not less than one of which was committed within the United States, having common characteristics such as to suggest the reasonable possibility that the crimes were committed by the same actor or actors.” However, it does mention that this definition lacks the ability to be applied and was mainly created to aid in the investigations of local or smaller police or investigative forces (“Serial Murder”). Donald Dutton, author of The Psychology of Genocide, Massacres, and And Extreme Violence: Why 'Normal' People Come to Commit Atrocities, mentions “A large distinction that separates serial killer form other murderers is their motives to kill. . . [S]erial killers are only driven by instinct and a desire to kill.” As given by the definitions above, it is apparent that a serial killer is one who kills multiple people and lusts for …show more content…
In his research, Dr. Richard Davidson, a professor at the University of Wisconsin, looked over five hundred different scans to try and find a pattern of possible psychopathy within the brain. Dr. Davidson found “that the brain images of those who had been convicted of a murder with aggressive or antisocial disorders showed distinct brain activity compared to those who were considered normal” (American Academy). With this discovery, there was now evidence to support that brain activity and possibly DNA were the reasons for such vicious acts of terror. James Fallon, a neuroscientist researching brain scans of serial killers, noticed in his research that signs of pathological evidence included low activity in particular part so the brain. These parts were linked to sympathy, control, and obtaining morals. Finding that he himself showed signs of psychotic brain activity, James Fallon underwent many tests to ensure his discovery only to find out that he had genes linked to aggression (Stromberg). Not only has the natural brain been linked to psychopathic activity, but damage to the brain has also been found as a reason for psychopathy. According to Andrea L. Glenn and Adrian Raine, “Patients with damage to the ventromedial region of the prefrontal cortex demonstrate symptoms that most closely resemble psychopathic traits. The ventromedial prefrontal cortex is a region located in the