In medieval France, Gilles de Rais made his name as Joan of Arc's greatest ally. But now, we know him as one of history's most terrifying serial killers. From the depths of his castle, Gilles assaulted and murdered innocent children. And it seemed like nobody could stop him. Mind of a Serial Killer is a Crime House Original. Follow us on Instagram and TikTok @crimehouse for more true crime content.

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