Serial killers have long fascinated true crime enthusiasts. We wonder what drives a human to hunt other humans. Is there really a compulsion there? A visceral need? Or do some serial killers just do it purely for the pleasure? The first recorded serial killers in America seemed to have a real bloodlust and they were cousins. The Harpe Brothers. Intro and Outro music: Bad Players - Licensed under a non-exclusive, non-transferable, non-assignable, single-site, worldwide, royalty-free license agreement with Muse Music c/o Groove Studios. Other music used in this episode is from artists at Filmmusic.io: Suspenseful Calm Piano And Cello by MusicLFiles Link: https://filmmusic.io/song/8826-suspenseful-calm-piano-and-cello License: https://filmmusic.io/standard-license Cigar Box Blues by Winnie the Moog And Purple Planet Music at https://www.purple-planet.com: Corrosion by Geoff Harvey and Chris Martyn