The provided episode explores the lives and crimes of a series of serial killers, many of whom had connections to Iowa, highlighting their brutal acts, criminal histories, and methods of operation. The article details the investigations into their crimes, including the use of DNA evidence and confessions, and the subsequent trials, convictions, and sentences. It also explores the diverse motivations behind their crimes, ranging from a desire for power and control to the desire to escape responsibility. The article ultimately paints a chilling picture of these individuals and the lasting impact their crimes had on their victims and their families.

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