After the death of Vann's child, Vann snaps. He's arrested twice for horrific crimes, once in Gary and then in Austin.

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Detective Ford interrogates Vann about his past and tries to determine how many Vann has really killed... And what can we learn from Vann's ex-wife, stepson, and ex-girlfriend?

Find out more about the case on twitter, instagram, or facebook. Follow host Ben Kuebrich on twitter @Ben_kuebrich. And reach out with any tips on Darren Vann, Big E, or crimes that might be related on social media or by leaving a voicemail at 888-501-3309.

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The Death March Continues as Darren Vann leads detectives to more victims... but it's unclear if he's telling the whole truth about his crimes ...

Find out more about the case on twitter, instagram, or facebook. Follow host Ben Kuebrich on twitter. And reach out with any tips on Darren Vann, Big E, or crimes that might be related on social media or by leaving us a voicemail at 888-501-3309.

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Detective Ford investigates Afrikka's killer... and discovers the killer may be connected to even more murders.

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Jackie investigates the cases Hargrove's algorithm identified. But there aren't any major leads... until Afrikka's murder.

What really happened the night Afrikka was killed?

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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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When Afrikka Hardy was strangled in 2014 it seemed completely random. But it wasn’t. It was part of a pattern.

Lori Townsend reminisces about her daughter Afrikka, and journalist Thomas Hargrove says Afrikka's death could've been prevented.

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When Afrikka Hardy was murdered, it seemed completely random. But it wasn't. It was part of a pattern. And police had been warned that a serial killer was on the loose in Indiana.

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Can an algorithm connect cold cases -- and help catch a modern serial killer?

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