Four years before Afrikka's Death, reporter Thomas Hargrove took clues from the Atlanta child murders and the Green River Killer and created an algorithm to detect serial killers. His algorithm flagged Gary, Indiana as the site of an unusual number of strangulations. But how did this algorithm work, and what came of the findings?

Thomas Hargrove discusses the creation of the algorithm and Dr. Mike Aamodt talks serial killing stats. Finally, host Ben Kuebrich receives an unexpected phone call.

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