Carl Panzram was a self-confessed serial killer and rapist, who admitted in his autobiography to over 20 murders just before his execution in 1930. My guest, John Borowski, director of the documentary "Carl Panzram: The Spirit of Hatred and Vengeance" talks about this man, who many consider one of most evil people to ever walk the earth, and how childhood traumas and prison torture might have contributed in transforming him into a monster.

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