Brain anatomy, genetics, and a person’s environment may all contribute to the development of psychopathic traits. One of the factors used from the study of psychopathy is recognizing dangerous characteristics. In which, often pass unnoticed until they commit a horrific crime. However, not all psychopaths are criminals – some psychopathic traits are actually linked to success. There’s a particularly interesting link between serial killers and psychopaths steaming from characteristics. Common traits include superficial charm, grandiose sense of self, easily bored, manipulative, lack of remorse or guilt, lack of empathy, and sexual promiscuity. Serial killers take it a step further by use of physical violence often escalating to sadistic rituals