A serial killer is a person who kills multiple people over a period of time, with a “cooling off” period between each murder. The Federal Bureau of Investigation (FBI) defines a serial killer as someone who has killed at least three people in separate events, with a “cooling off” period between each murder, and the killings must not be part of an effort to commit another crime.
Serial killers are usually motivated by psychological factors and may have a specific type of victim or “signature” that links their crimes together. They often engage in a variety of criminal activities, such as necrophilia, mutilation, and cannibalism.
It’s important to note that the definition of serial killer can vary depending on the jurisdiction and the source. Also, some researchers and criminologists use different criteria, such as a minimum number of victims, a specific period of time, the absence of a cooling off period, and the presence of a specific motive.
In many jurisdictions, serial killers are charged with multiple counts of first-degree murder and can face life imprisonment or the death penalty if convicted.