Westley Allan Dodd - The Worst Serial Killer in the World

The Terrifying Reign Of Scotland's First Serial Killer: Peter Manuel | Murder Casebook | Real Crime

The Werewolf - World's Worst Serial Killer

John Wayne Gacy: The Serial Killer Clown | Our History

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The Chilling Story Of Americas First Serial Killer: HH Holmes | Our History

Samuel Little (Part 1): The Most Prolific Serial Killer in the U.S. | Prime Crime | A&E

The First Recorded Serial Killer

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Every PSYCHO Killer Explained in 13 Minutes

Interview With A Serial Killer | Real Stories

The Eerie Story of America's First Serial Killer | Our Life

What You Didn’t Know About America's Most INFAMOUS Serial Killer

First ever female serial killer: Aileen Wournos | 60 Minutes Australia

Hunting Mr. Cruel: Where is Australia's worst serial killer? | Under Investigation

The Pig Farmer - Canada's Most EVIL Serial Killer

Piers Morgan Interviews Woman who Killed her Entire Family | Serial Killer Women

The First Documented Serial Killer | Liu Pengli

Deadliest Serial Killer Killed 140+ Boys During Horrific Crime Spree

I-95 Serial Killer Coldly Details His Murder Spree | The Killer Speaks | A&E