Many people believe serial killer were born with that inheritable presupposition to kill which is known as nature. Nature refers to inherited, biological characteristics. However, in my opinion, I believe serial killer were raised in such an environment that causes them to kill. This statement refers to nurture. Nurture is the result of learning and environment resulting from outside factors such as parents, media, peers and religion. In this case, nurture is strongly shown. For example, early childhood abuse or neglect often leads to posttraumatic stress disorder or phobias. This is a reason in making psychopaths or serial killers to commit crimes by how their parents raised them. Next, from the documentary: The Ken & Barbie Killers, there
