There is no doubt that these killers have committed some of the most heinous crimes in the world, but who were they before they decided to kill and become the world's most evil killers?
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About World's Most Evil Killers:
World's Most Evil Killers deep-dives into the stories behind the world's most prolific killers... With firsthand accounts from the notorious murderers, leading detectives, gunning journalists, relatives, experts on crime analysis and sometimes even survivors - a must watch for any fan of true crime!
Before Their First Kill? | Thierry Paulin, Joachim Kroll, Dennis Rader | World's Most Evil Killers
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