Serial killers

Serial killers are individuals who commit a series of two or more murders, typically with a distinct pattern or methodology. These murders are often characterized by emotional gratification, a specific motive, or a psychological compulsion. Serial killers may have a specific "victim type" and often engage in a cooling-off period between murders, which distinguishes them from mass murderers or spree killers. The psychology of serial killers is complex and can involve various factors, including a history of trauma, mental illness, or personality disorders.