SIFS Forensic Institute on Instagram: "A serial killer is commonly defined as someone who kills three or more people, typically for abnormal psychological satisfaction, over a period of more than a month
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Jeffrey Dahmer: Who was Jeffrey Dahmer? 5 creepy facts about bloodthirsty protagonist of Netflix's gory serial killer crime drama - The Economic Times
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John E. Douglas Quote: “The term serial killer designates a predator who murders repeatedly and with a certain general periodicity. And after ea...”
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The Serial Killer Files: The Who, What, Where, How, and Why of the World's Most Terrifying Murderers: Schechter, Harold: 9780345465665: Amazon.com: Books
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