Understanding Psychology & Phenotypic Traits of Serial Killers

The viewpoint that portrays a serial killer very much like a white male, a deceptive monster with astounding appearance, having broken associations partaking in animal torture or being genuine or real mauled in pre-adulthood. Besides, every serial killer’s drive to kill different casualties might be different, contingent upon his/her set of experiences and encounters. Why would an individual kill multiple victims without a certain motive?  Researchers are still struggling with determining the cause of the behaviour to know more about them. The current study set out to analysis of psychological and phenotypic traits of serial killers and surveys about psychological traits of normal human beings having traits of serial killers, to identify possible life events and factors. The majority of the data has been collected from the survey using two scales i.e., the Buss Perry scale and Barrett’s aggression scale, and information have likewise been taken from the books expounded on every serial killer. The accompanying factors have been found: Sociological factors, environmental factors, genetics, and neurodevelopmental complication. There are different genes that regulate mood, sleep, feelings, appetite, etc. It is more similar to hereditary qualities that load the weapon and the environment pulls the trigger. Hence, if we can link such factors and serial killers together, we might be able to find out the common connection that makes them a killer.  Explanation of factors and interrelation and interpretation between them are discussed.