Mark of a Killer

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.

DocumentaryCrime

Seasons

1. Posed to Kill

Air Date: 2019-01-20

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.

2. The Last Call Killer

Air Date: 2019-01-27

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.

3. An Eye For Murder

Air Date: 2019-02-03

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.

4. Pattern of Murder

Air Date: 2019-02-17

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.

5. Momentos of Murder

Air Date: 2019-02-24

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.

6. An Appetite for Murder

Air Date: 2019-03-03

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.

1. Killer Caller

Air Date: 2020-04-09

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.

2. Deadly Summer

Air Date: 2020-04-16

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.

3. Deadly Design

Air Date: 2020-04-23

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.

4. The Other Zodiac

Air Date: 2020-04-30

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.

5. The Smell of Death

Air Date: 2020-05-07

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.

6. Hunted to Death

Air Date: 2020-05-14

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.

7. Collar and Leash Killer

Air Date: 2020-05-21

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.

8. Killer Athlete

Air Date: 2020-05-28

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.

9. Bound To Kill

Air Date: 2020-06-04

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.

10. Keys To A Killer

Air Date: 2020-06-13

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.

1. The I-40 Killer

Air Date: 2021-04-12

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.

2. The I-95 Killer

Air Date: 2021-04-13

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.

3. The Charmer

Air Date: 2021-04-14

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

4. The Englewood Killer

Air Date: 2021-04-15

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.

5. Classified to Kill

Air Date: 2021-04-16

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.

6. The Interstate Killer

Air Date: 2021-10-17

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.

7. The Grim Sleeper

Air Date: 2021-10-25

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

8. The Tourniquet Killer

Air Date: 2021-10-31

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

9. Deaths in the Desert

Air Date: 2021-10-31

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

10. Summer of Fear

Air Date: 2021-11-07

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.

11. The Monster

Air Date: 2022-04-02

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

12. The Bayou Strangler

Air Date: 2022-04-09

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.

13. The Skull Crusher

Air Date: 2022-04-16

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.

14. The D.C. Sniper

Air Date: 2022-04-23

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

1. The Monster