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Mark of a Serial Killer

Bullet Casing At Crime Scene Connects To Baseline Killer

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After another person is found dead in the Phoenix area, investigators use the bullet casing found at the crime scene to connect to the Baseline Killer.

Tags: Mark of a Serial Killer, True Crime, oxygen, serial killers
S3 E101 minTV-14HighlightReality and Game ShowPrimetime
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