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List of serial killers in the United States - Wikipedia
List of serial killers by number of victims - Wikipedia
8 of History's Most Notorious Serial Killers | HISTORY
Murderpedia, the encyclopedia of murderers
Infamous Serial Killers: Mass Murderers Who Terrorized ... - Biography
Serial killer - Wikipedia
Serial Murder — FBI
Serial murder | Definition, Characteristics, Types, & Facts
What data on 3,000 murderers and 10,000 victims tells us about serial …
The Unravelling of an Expert on Serial Killers | The New Yorker