It's because of revisionist history that Paul John Knowles might be better known to some listeners at the Casanova Killer, but don't be fooled: This serial killer deserves no romanticization. Knowles went on a murder spree in 1974 that's been tied to the deaths of at least 20 people -- and he apparently did it just to get famous.

"Crimes of the Centuries" is a podcast from Grab Bag Collab exploring forgotten crimes from times past that made a mark and helped change history.

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