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Mark of a Serial Killer

S3 E104/12/21

The I-40 Killer
Also available on the nbc app

A killer is murdering and mutilating young women along the Route 40 corridor in Delaware. But when investigators set up an undercover operation, the hunter soon becomes the hunted.

Available until 01/01/23
Tags: oxygen, True Crime, serial killers, Mark of a Serial Killer
S3 E144 minTV-14Full EpisodeReality and Game ShowPrimetime
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