Defined by the FBI as individuals who commit at least three separate murders over time, with cooling-off periods between each event. These cases reveal patterns of control, compulsion, and psychological escalation — distinct from spree or mass killings, which unfold in bursts or single locations.
This is the chilling story of Cary Stayner, a man whose descent into darkness shocked a nation. Years after his brother Steven’s harrowing ordeal and celebrated return, Cary committed a series of brutal murders near Yosemite National Park — taking the lives of four innocent women and deepening the wounds of a family already scarred by tragedy.
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This is the disturbing story of Amarjeet Sada, who at just 8 years old became the world’s youngest known serial killer after murdering three infants—including his sister and cousin—in Bihar, India.
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