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Mark of a Killer

All Episodes 2019 - 2022
TV-14

  • 2018-01-14T01:00:00Zs at 2018-01-14T01:00:00Z on Oxygen
  • 2019-01-21T01:00:00Z
  • 43m
  • 1d 22m (34 episodes)
  • United States
  • English
  • Crime, Documentary
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.

34 episodes

Series Premiere

2019-01-21T01:00:00Z

1x01 Posed to Kill

Series Premiere

1x01 Posed to Kill

  • 2019-01-21T01:00:00Z43m

In 1990, a serial killer terrorizes the University of Florida’s campus, killing 5 students in under 4 days. “The Gainesville Ripper” leaves behind a bizarre crime scene where all the victims have been stabbed but the females have been posed like dolls.

2019-01-28T01:00:00Z

1x02 The Last Call Killer

1x02 The Last Call Killer

  • 2019-01-28T01:00:00Z43m

In New Jersey four bodies are found dismembered, bagged, and thrown in roadside garbage cans. The “Last Call Killer" hunted his victims openly in piano bars but no one suspected he could be hiding in plain sight, working as a local nurse.

2019-02-04T01:00:00Z

1x03 An Eye For Murder

1x03 An Eye For Murder

  • 2019-02-04T01:00:00Z43m

Dallas police discover three women murdered with their eyes surgically removed; police believe they have a deranged doctor on the loose until two rookie cops find themselves on the trail of a man with a talent for taxidermy and a hatred for women.

2019-02-18T01:00:00Z

1x04 Pattern of Murder

1x04 Pattern of Murder

  • 2019-02-18T01:00:00Z43m

A killer hijacks the highways of Sacramento as several women are found strangled with their clothing cut into precise but odd patterns; a survivor leads police to a sports car driving deviant posing as a good samaritan to poach potential victims.

2019-02-25T01:00:00Z

1x05 Momentos of Murder

1x05 Momentos of Murder

  • 2019-02-25T01:00:00Z43m

When the Hillside Stranglers are caught police realize they still have another serial killer running rampant in Los Angeles; he tortures and toys with his model victims while keeping pieces of their jewelry as he snaps their last photo ever.

Season Finale

2019-03-04T01:00:00Z

1x06 An Appetite for Murder

Season Finale

1x06 An Appetite for Murder

  • 2019-03-04T01:00:00Z43m

Texas authorities have a killer riding the rails and leaving a literal trail of bread crumbs after eating at victims' tables; when more murders are linked, the FBI names a Most Wanted suspect and a national manhunt for The Railroad Killer ensues.

Season Premiere

2020-04-10T00:00:00Z

2x01 Killer Caller

Season Premiere

2x01 Killer Caller

  • 2020-04-10T00:00:00Z43m

Twin Cities, MN, police are hunting for a killer caller who confesses to a string of murders in a chilling, high-pitched voice, begging for forgiveness. No one can identify him until one woman survives a brutal attack.

2020-04-17T00:00:00Z

2x02 Deadly Summer

2x02 Deadly Summer

  • 2020-04-17T00:00:00Z43m

In the summer of 1976, the NYPD are chasing a man shooting at couples in parked cars with a gigantic, .44 caliber handgun. He taunts the city with terrifying letters until police get a lead about a suspect who has shot a neighbor’s dog.

2020-04-24T00:00:00Z

2x03 Deadly Design

2x03 Deadly Design

  • 2020-04-24T00:00:00Z43m

Brooklyn shop keepers are afraid of closing time as a killer shoots his victims while locking up their stores. Police release surveillance footage to the press and ask the public for help to find a duffle bag wielding murderer before he strikes again.

2020-05-01T00:00:00Z

2x04 The Other Zodiac

2x04 The Other Zodiac

  • 2020-05-01T00:00:00Z43m

In the 1990s, New York is on edge as a killer leaves coded clues at crime scenes and declares his compulsion to choose victims by their birth signs. Police race against time before he can achieve twelve killings to complete the Zodiac.

2020-05-08T00:00:00Z

2x05 The Smell of Death

2x05 The Smell of Death

  • 2020-05-08T00:00:00Z43m

A rash of young men goes missing around Chicago during the 1970s; when bodies start washing up in the river, a pattern emerges; a small piece of evidence leads police to the home of a model citizen, where his furnace puts the suspect in the hot seat.

2020-05-15T00:00:00Z

2x06 Hunted to Death

2x06 Hunted to Death

  • 2020-05-15T00:00:00Z43m

Police find a string of murdered women in shallow graves in very remote areas of the Alaskan wilderness; after months of searching, police zero in on a local family man living a double life that no one suspects.

2020-05-22T00:00:00Z

2x07 Collar and Leash Killer

2x07 Collar and Leash Killer

  • 2020-05-22T00:00:00Z43m

Numerous women are found dead by the side of the road with a unique ligature that looks like a dog collar and leash; detectives are stumped until a 17-year-old girl manages an escape from a vicious kidnapper, leading police to a serial killer.

2020-05-29T00:00:00Z

2x08 Killer Athlete

2x08 Killer Athlete

  • 2020-05-29T00:00:00Z43m

The I-5 corridor in California is taken over by a brazen bandit who terrorizes the highway with a blitz of assaults and murders. The only clue to the identity of the killer is a specific athletic tape used to bind his victims.

2020-06-05T00:00:00Z

2x09 Bound To Kill

2x09 Bound To Kill

  • 2020-06-05T00:00:00Z43m

A serial killer taunted Wichita, Kansas for decades with brazen letters taking credit for his horrific kills. At the introduction of the computer era, the killer gets sloppy and accidentally leaves a digital clue behind in his final taunt to police.

Season Finale

2020-06-14T00:00:00Z

2x10 Keys To A Killer

Season Finale

2x10 Keys To A Killer

  • 2020-06-14T00:00:00Z43m

In the 1990s, Louisiana is terrorized by multiple serial killers. The small-town PD of Zachary discover the key to solving their cases when a pattern emerges with personal items missing from each local victim.

Season Premiere

2021-04-13T00:00:00Z

3x01 The I-40 Killer

Season Premiere

3x01 The I-40 Killer

  • 2021-04-13T00:00:00Z43m

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.

2021-04-14T00:00:00Z

3x02 The I-95 Killer

3x02 The I-95 Killer

  • 2021-04-14T00:00:00Z43m

After 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.

2021-04-15T00:00:00Z

3x03 The Charmer

3x03 The Charmer

  • 2021-04-15T00:00:00Z43m

A 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

2021-04-16T00:00:00Z

3x04 The Englewood Killer

3x04 The Englewood Killer

  • 2021-04-16T00:00:00Z43m

Chicago 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.

2021-04-17T00:00:00Z

3x05 Classified to Kill

3x05 Classified to Kill

  • 2021-04-17T00:00:00Z43m

Chicago 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.

2021-10-18T00:00:00Z

3x06 The Interstate Killer

3x06 The Interstate Killer

  • 2021-10-18T00:00:00Z43m

A 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.

2021-10-26T00:00:00Z

3x07 The Grim Sleeper

3x07 The Grim Sleeper

  • 2021-10-26T00:00:00Z43m

A cold-blooded killer conceals his victims' bodies with trash, discarding them like garbage in the back alleyways of Los Angeles.

2021-11-01T00:00:00Z

3x08 The Tourniquet Killer

3x08 The Tourniquet Killer

  • 2021-11-01T00:00:00Z43m

A Houston killer taunts the media and authorities as he uses homemade ligatures to murder his victims.

2021-11-01T00:00:00Z

3x09 Deaths in the Desert

3x09 Deaths in the Desert

  • 2021-11-01T00:00:00Z43m

El Paso investigators race to track down a ruthless killer that is burying his victims in shallow desert graves, dead or alive.

2021-11-08T01:00:00Z

3x10 Summer of Fear

3x10 Summer of Fear

  • 2021-11-08T01:00:00Z43m

Chaos descends on Phoenix as two serial killers compete for the media's attention and the bodies pile up faster than the police can investigate.

2022-04-03T00:00:00Z

3x11 The Monster

3x11 The Monster

  • 2022-04-03T00:00:00Z43m

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

2022-04-10T00:00:00Z

3x12 The Bayou Strangler

3x12 The Bayou Strangler

  • 2022-04-10T00:00:00Z43m

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.

2022-04-17T00:00:00Z

3x13 The Skull Crusher

3x13 The Skull Crusher

  • 2022-04-17T00:00:00Z43m

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.

Season Finale

2022-04-24T00:00:00Z

3x14 The D.C. Sniper

Season Finale

3x14 The D.C. Sniper

  • 2022-04-24T00:00:00Z43m

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

Season Premiere

2022-04-03T00:00:00Z

4x01 The Monster

Season Premiere

4x01 The Monster

  • 2022-04-03T00:00:00Z43m

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

2022-04-10T00:00:00Z

4x02 The Bayou Strangler

4x02 The Bayou Strangler

  • 2022-04-10T00:00:00Z43m

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.

2022-04-17T00:00:00Z

4x03 The Skull Crusher

4x03 The Skull Crusher

  • 2022-04-17T00:00:00Z43m

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.

Season Finale

2022-04-24T00:00:00Z

4x04 The D.C. Sniper

Season Finale

4x04 The D.C. Sniper

  • 2022-04-24T00:00:00Z43m

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

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