Mark of a Killer (2019)
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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Episode 1 - The I-40 Killer
Release Date: 2021-04-12A 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.
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Episode 2 - The I-95 Killer
Release Date: 2021-04-13After multiple men are discovered brutally murdered, investigators determine that each victim was last seen with a handsome stranger they met in a bar. Police ask the public for help in tracking down a dangerous drifter before he kills again.
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Episode 3 - The Charmer
Release Date: 2021-04-14A series of women in the Seattle area are found brutally murdered, their bodies posed. Police realize they may have a killer stalking the area nightclub scene, one who is able to charm his victims into submission
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Episode 4 - The Englewood Killer
Release Date: 2021-04-15Chicago police are investigating the murders of several women, whose bodies are discovered in abandoned buildings barefoot. Evidence indicates there is one offender, now police need to locate him.
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Episode 5 - Classified to Kill
Release Date: 2021-04-16Chicago detectives believe a serial killer is using the classified ads to lure and murder his victims. The investigation is set ablaze when flames obliterate evidence, until police make a shocking discovery.
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Episode 6 - The Interstate Killer
Release Date: 2021-10-17A killer crisscrosses the Midwest leaving a string of victims along the interstate. When investigators are hot on the highway killer’s trail, the murderer suddenly changes his mark.
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Episode 7 - The Grim Sleeper
Release Date: 2021-10-25A cold-blooded killer conceals his victims' bodies with trash, discarding them like garbage in the back alleyways of Los Angeles.
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Episode 8 - The Tourniquet Killer
Release Date: 2021-10-31A Houston killer taunts the media and authorities as he uses homemade ligatures to murder his victims.
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Episode 9 - Deaths in the Desert
Release Date: 2021-10-31El Paso investigators race to track down a ruthless killer that is burying his victims in shallow desert graves, dead or alive.
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Episode 10 - Summer of Fear
Release Date: 2021-11-07Chaos descends on Phoenix as two serial killers compete for the media's attention and the bodies pile up faster than the police can investigate.
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Episode 11 - The Monster
Release Date: 2022-04-02Investigators 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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Episode 12 - The Bayou Strangler
Release Date: 2022-04-09When 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.
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Episode 13 - The Skull Crusher
Release Date: 2022-04-16Police 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.
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Episode 14 - The D.C. Sniper
Release Date: 2022-04-23A serial sniper terrorizes the entire D.C. metro area by discreetly targeting random victims out in public and in plain sight.