Mark of a Serial Killer

Mark of a Serial Killer - Oxygen

Oxygen

Reality Series

2019

TV14

Crime

Docudrama

Taking a deep dive into serial killers’ depraved psyches to reveal their darkest secrets.

Where to Stream

2019– Reality Series 3 Seasons31 Episodes

Upcoming TV Airings

The airings below are based on a generic national schedule. Times and dates can vary by TV provider.

Wednesday, September 17

Collar and Leash Killer

Season 2 • Episode 7

Numerous women are found dead with a unique ligature that looks like a dog collar and leash.

Wednesday, September 17

Killer Athlete

Season 2 • Episode 8

The I-5 corridor in California is taken over by a brazen bandit who terrorizes the highway.

Wednesday, September 17

Bound to Kill

Season 2 • Episode 9

A serial killer taunts Wichita, Kan., for decades with brazen letters.

Wednesday, September 17

Keys to a Killer

Season 2 • Episode 10

In the 1990s, Louisiana is terrorized by multiple serial killers; Zachary Police Department.

Thursday, September 18

The Charmer

Season 3 • Episode 3

After women are murdered, police suspect the killer is able to charm his victims into submission.

Thursday, September 18

The Englewood Killer

Season 3 • Episode 4

Female murder victims are discovered in abandoned buildings barefoot.

Thursday, September 18

Classified to Kill

Season 3 • Episode 5

Detectives believe that a serial killer is using classified ads to lure and murder his victims.

Thursday, September 18

The Interstate Killer

Season 3 • Episode 6

A killer crisscrossing the Midwest and leaving a string of victims suddenly changes his mark.

Friday, September 19

The Grim Sleeper

Season 3 • Episode 7

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

Friday, September 19

The Tourniquet Killer

Season 3 • Episode 8

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

Friday, September 19

Summer of Fear

Season 3 • Episode 10

Two serial killers compete for the media's attention and the bodies pile up.