Definition

Noun: A person who commits a series of murders, typically with a similar pattern or method, and with a psychological compulsion to kill. The acts are separate events occurring over a period of time.

Usage

The term "serial killer" is used to classify a specific type of murderer. It is a formal term used in criminology, law enforcement, psychology, and media reporting. It describes an individual, not the act itself.

Examples

• Law enforcement officials are searching for a serial killer who has claimed five victims in the metropolitan area.
• The psychologist studied the mind of the notorious serial killer.
• The documentary examined what drives a person to become a serial killer.

Advanced Usage

• The term is often contrasted with "mass murderer" (who kills multiple victims in a single event) and "spree killer" (who kills at multiple locations with no "cooling-off" period).
• In academic and forensic contexts, specific criteria (such as the number of victims, the presence of a "cooling-off" period between murders, and the element of psychological gratification) are used to define a serial killer.

Variants and Related Words

• Serial Murder (n): The criminal act committed by a serial killer.
  • The city was gripped by fear during the wave of serial murder.
• Serial Homicide (n): A more formal, often legal, synonym for serial murder.

Synonyms

• Multiple Murderer: A broader, less specific term.
• Sequence Killer: A less common synonym.

Related Phrases

• To hunt a serial killer: The active police investigation to apprehend the individual.
  • The task force was formed to hunt the serial killer.
• Serial killer profile: A behavioral and psychological description created by investigators to help identify an unknown offender.
  • The FBI agent developed a serial killer profile.

Noun

1. someone who murders more than three victims one at a time in a relatively short interval