The background of a killer can be explained with the concept of Nature VS Nurture. Nature is the concept that refers to the numerous hereditary characteristics of the genetic makeup with which a human being is born. Education is the influence of the environment, including parenting style, and economic factors. Incidentally, many believe that killers were born with mutated (abnormal) DNA. However, this concept is a matter of debate because modern geneticists argue that killers are not born that way and that their environment is where a killer's mind is born or formed. However, if we examine these two components together, we can deduce that the end product of a human being's mind and actions is the end result of nature and nurture