In this website, Psycho killer Bio data will be given with full details. The study of serial killers can provide insight into the broader social and historical contexts that constitute the structural preconditions for such acts .Understanding the psychology and behavior of serial killers can help to understand and create them. Serial killers have four motives: those who kill to fulfill a mission, those who kill for the thrill, those who kill to gain power, and those who kill for profit.