For True Crime buffs who love the twists and turns of a criminal investigation, Oxygen True Crime has a deep library of shows that ask the provocative questions, run exhaustive investigations and look for ways that  justice always is served

Mark of a Serial Killer

S1, EP1 "Posed to Kill"

In 1990, a serial killer terrorizes the University of Florida's campus, killing five students in under four days; the Gainesville Ripper leaves behind a crime scene where all the victims have been stabbed but the females have been posed like dolls.

Mark of a Serial Killer

S1, EP2 "The Last Call Killer"

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.

Mark of a Serial Killer

S1, EP3 "An Eye for Murder"

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.

Mark of a Serial Killer

S1, EP4 "Pattern of Murder"

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.

Mark of a Serial Killer

S1, EP5 "Momentos of Murder"

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.

Mark of a Serial Killer

S1, EP6 "An Appetite for Murder"

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.

Mark of a Serial Killer

S2, EP1 "Killer Caller"

Minnesota police hunt 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.

Mark of a Serial Killer

S2, EP2 "Deadly Summer"

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.

Homicide for the Holidays

S3, EP4 "Death in Santa Claus"

After a family is found massacred inside their Santa Claus, Georgia home, the hunt for their killer hinges on the eyewitness testimony of the three young surviving daughters.

Homicide for the Holidays

S4, EP1 "The Last Thanksgiving"

A Thanksgiving feast turns into a family's last when a cold blooded killer brutally stabs and dismembers a couple the day after their holiday celebration.

Homicide for the Holidays

S4, EP2 "Six Slays of Christmas"

Dayton, Ohio, is terrorized over the Christmas holiday as a string of brutal shootings have the residents wondering if they could be next.

Homicide for the Holidays

S4, EP3 "Killing of the Christmas Tree Farmers"

Beloved Christmas tree farmers are executed in the front seat of their car and a manhunt for their killer is launched that keeps investigators on the case for over three decades before justice is served.

Homicide for the Holidays

S4, EP4 "Murder Under the Mistletoe"

When a young mother is murdered during Christmas, investigators uncover a love triangle that shocks her family and forever robs them of their holiday cheer.

Homicide for the Holidays

S4, EP5 "Halloween Horror"

A teenage boy discovers a real-life horror scene in his home on Halloween morning; investigators must determine if the triple homicide is a random act of evil or a premeditated slaughter by someone close to the family.

Homicide for the Holidays

S4, EP6 "All Hallow's Evil"

After a single young mother fails to show up for work on Halloween, her family and friends suspect murder.

Homicide for the Holidays

S4, EP7 "Cold Turkey"

A prominent couple are found brutally murdered in their Montgomery, Ala., home on Thanksgiving night, leading detectives on a cat-and-mouse chase spanning thousands of miles across multiple states.

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