A person who killed three or more people in different occasions is considered as a serial killer. Typically serial killers tend to murder people due to psychological reasons. Killing a person is an enjoyable moment for a serial killer and according to psychological researches most of the serial killers did many weird things while they was killing people. Some of them raped the victims before killing while some others enjoyed raping the corpse. Some serial killers tortured victims for days before killing.
Many researches has proven that serial killers were not born they were made by the society. Many serial killers have gone through very unpleasant moments in their early life. Some of them were raped, some have witnessed their family members being murdered in front of them and some others were forced to do things that they don’t want to do. Those unpleasant memories and experiences may lead a person to a very unstable mental conditions called personality disorders.