A serial killer is someone who kills at constant, but patient rate. After some while he takes what is called a "cooling off period". The difference between a mass murdered and a serial killer is that a serial killer will kill one at a time and then cool off. While a mass murderer will kill large amounts at a time. The victims of serial killers relates strait to the childhood. Certain victims are designated because the killer has a certain dislike towards them from early years.
Most serial killers are Caucasian males ate ages between 20-40 years old. Serial killers can be motivated by countless things, things like anger, thrill, attention, or for sexual pleasure. Serial killers can be created from sexual addresses or murdering. Often they are created from a rough childhood that occurred bullying or physical abuse.
Many serial killers go anonymous for a long period of time because what people imagine a killer to look like is nothing like the one in reality. A huge reason why it is so hard to capture a serial killer is they are extremely intelligent. For example, B.T.K. was a normal member of society when he wasn't killing. Rader was married with children, and was a police officer. Having a normal life and remaining that life throughout the years of killing helped Dennis Rader go anonymous for 2 decades.
Serial killers are formed due to their rough childhood that involved parental beating, sexual abuse, social mishaps, or sexuality confusion. These past experiences are shown through the corpses of the killers victims and exposes the lust and the need for sexual pleasure, and detectives can relate that to the killers childhood. It becomes no question that most serial killers are formed because of chronic physical, mental, and sexual abuse as a chld.