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Mark of a Killer

Mark of a Killer Season 4: Episode Guide & Ratings

Season 4 Episodes

1. The Monster

April 2nd, 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.

2. The Bayou Strangler

April 9th, 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.

3. The Skull Crusher

April 16th, 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.

4. The D.C. Sniper

April 23rd, 2022

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

All Seasons

Season 4

Season 4

Apr 2, 2022
Season 3

Season 3

Apr 12, 2021
Season 2

Season 2

Apr 9, 2020
Season 1

Season 1

Jan 20, 2019