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Season 4

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All serial killers commit murder to satisfy their grand fantasies, but the murderers featured in this true-crime docuseries take it one step further, committing heinous acts that allow them to extend their fantasies and relive the excitement of their crimes again and again.

Mark of a Killer Season 4

April. 02,2022
|
7.4
|
TV-14
| Crime Documentary
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AD:This title is currently not available on Prime Video

Mark of a Killer

2019  / TV-14

All serial killers commit murder to satisfy their grand fantasies, but the murderers featured in this true-crime docuseries take it one step further, committing heinous acts that allow them to extend their fantasies and relive the excitement of their crimes again and again.

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Watch on Prime Video

With 30 Day Free Trial!

Stream Now

Mark of a Killer Season 4 Full Episode Guide

Episode 4 - The D.C. Sniper
First Aired: April. 23,2022

A serial sniper terrorizes the entire D.C. metro area by discreetly targeting random victims out in public and in plain sight.

Episode 3 - The Skull Crusher
First Aired: April. 16,2022

Police in Hartford, Connecticut investigate a string of ruthless killings in the Asylum Hill area committed by a killer with a devastating mark that leaves his victims nearly unrecognizable.

Episode 2 - The Bayou Strangler
First Aired: April. 09,2022

When multiple victims' bodies are dumped around Louisiana's bayou area, a task force is formed to catch a killer who police believe may have strangled over 20 men.

Episode 1 - The Monster
First Aired: April. 02,2022

Investigators in East Baton Rouge, Louisiana, hunt for a serial murderer who carefully carves up and cuts the bodies of his victims after death.

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