Skip to main content
Saturdays at 8/7c
Mark of a Serial Killer

Main menu

  • Shows
  • Episodes & Videos
  • News
  • Podcast
  • Oxygen Insider
  • Schedule
  • Channel Finder
Toggle menu
  • Sign Up / Log In

Main menu

  • Shows
    • All Shows
      • Chicago P.D.
      • Dark Web Exposed
      • Dateline: Secrets Uncovered
      • Dateline: Unforgettable
      • Exhumed
      • Famous Cases Explained
      • How To Stay Safe
      • Killer Couples
      • Murdered by Morning
      • Searching For
    • Channel Finder
  • Episodes & Videos
    • Full Episodes
    • Trending Videos
    • Watch Live TV
    • Watch in the App
    • Peacock
  • News
    • Crime News
    • True Crime Buzz
  • Podcast
  • Oxygen Insider
  • Schedule
  • Channel Finder
TV Provider
Oxygen Insider
Sign Up / Log In
Profile
Manage Profile Email Preferences
Sign Out
Saturdays at 8/7c
Mark of a Serial Killer

Show Navigation

  • Watch
  • News
  • Episodes
A photo of John Allen Muhammad featured in Mark of a Serial Killer.
Crime News

Beltway Sniper Duo Terrorizes DC Area

3 weeks ago
A photo of John Allen Muhammad featured in Mark of a Serial Killer.
Crime News

'Call Me God': Sniper Pair Leaves Tarot Cards And Ominous Messages At Murder Scenes

Serial snipers John Allen Muhammad, Lee Boyd Malvo randomly killed in broad daylight and terrorized the DC metro area.
By Joe Dziemianowicz | 3 weeks ago
Matthew Steven Johnson's mugshot
Crime News

Serial Killer Crushing Women's Skulls Terrorized Connecticut

1 month ago
Matthew Steven Johnson's mugshot
Crime News

‘She Was Clearly Stomped On’: Serial Killer Crushing Women's Skulls Terrorized Connecticut

In Hartford, Connecticut, a search commenced for a serial killer, Matthew Steven Johnson, who seemed to enjoy “the physical act of annihilating another human being.” 
By Becca van Sambeck | 1 month ago
Ronald Joseph Dominique Moask
Crime News

Louisiana ‘Bayou Strangler’ Preyed On Men

1 month ago
Ronald Joseph Dominique Moask
Crime News

‘He Perfected His Hunt’: Louisiana ‘Bayou Strangler’ Preyed On Men

When the ‘Bayou Strangler' was caught, he was "sort of braggadocious" as he described strangling and killing his victims.
By Joe Dziemianowicz | 1 month ago
Sean Vincent Gillis Moask
Crime News

Louisiana Killer Strangled, Mutilated Women

1 month ago
Sean Vincent Gillis Moask
Crime News

‘Eyelids Had Been Removed’: Serial Killer Strangled Women, Then Mutilated Them

Baton Rouge detectives track a serial strangler of women who got “satisfaction” from mutilating his victims.
By Joe Dziemianowicz | 1 month ago
Ronald Joseph Dominique Moask
Crime News

What To Know About The ‘Bayou Strangler’

1 month ago
Ronald Joseph Dominique Moask
Crime News

What To Know About The ‘Bayou Strangler’ Before ‘Mark Of A Serial Killer” Returns

Before watching "Mark Of  A Serial Killer," learn how a task force tracked Louisiana's “most gruesome serial killer,” a person strangling homeless men to death.
By Becca van Sambeck | 1 month ago
Serial Killers By State
Crime News

The Serial Killers In Every State

1 month ago
Serial Killers By State
Crime News

Who Is The Most Infamous Serial Killer In Each State?

Even in Hawaii, there has been a serial killer. See which murderer stalked your state.
By Becca van Sambeck | 1 month ago
David Leonard Wood Moask 309
Crime News

Serial Killed Buried His Victims In The Desert, Dead Or Alive

6 months ago
David Leonard Wood Moask 309
Crime News

‘Bodies Will Talk To You’: Texas Serial Killed Buried His Victims In The Desert, Dead Or Alive

Young women in shallow graves was ruthless killer David Leonard Wood's grim signature. 
By Joe Dziemianowicz | 6 months ago
Anthony Shore Moask 310
Crime News

Who Was The ‘Tourniquet Killer,' A Texas Serial Strangler?

6 months ago
Anthony Shore Moask 310
Crime News

‘I Have Crazy Thoughts … Sick Notions’: The ‘Tourniquet Killer’ Admits To Choking 4 People

Anthony Shore used homemade ligatures to murder his victims, including a 9-year-old girl.
By Joe Dziemianowicz | 6 months ago
Lonnie Franklin Jr
Crime News

Who Was The 'Grim Sleeper' Serial Killer?

6 months ago
Lonnie Franklin Jr
Crime News

The ‘Grim Sleeper’ Serial Killer Left A Trail Of Bodies In Los Angeles For 2 Decades

Familial DNA and pizza helped the LAPD finally catch the "Grim Sleeper" serial killer.
By Joe Dziemianowicz | 6 months ago
Larry Eyler Ap
Crime News

Inside The Manhunt For Highway Killer Larry Eyler

7 months ago
Larry Eyler Ap
Crime News

'We Have A Serial Murderer, With Multiple Bodies Stacking Up’: Inside The Manhunt For The Highway Killer

In the 1980s, a serial murderer targeted young men and left a trail of bodies across the Midwest. 
By Joe Dziemianowicz | 7 months ago
Load More

Latest Oxygen News

Missing person John McClelland
Crime News

Alaska Man Arrested For One Murder Indicted In Another

40 min ago
Amber Heard
Crime News

Amber Heard Resumes Testimony In Trial With Johnny Depp

1 hour ago
Geneva Presbyterian Church In Laguna Woods
Crime News

Alleged California Church Shooter, Motive Identified

1 hour ago
A personal photo of Angie Miller
Crime News

Nebraska School Counselor Killed By Ex In Murder-Suicide

2 min ago
The app Tiktok opened up on a phone
Crime News

Mom Sues TikTok After Child Dies During Viral Challenge

47 min ago

Become an Oxygen Insider

Get an all-access pass to never-before-seen content, free digital evidence kits, and much more!

Sign Up for Free

Oxygen Insider Exclusives

Check out never-before-seen content, free digital evidence kits, and much more!

See Insider Exclusives
  • About
    • Careers
    • Viewer's Voice
    • Advertise with Us
    • Contact
  • Help
    • FAQ
    • Closed Captioning
    • Shopping Support
    • Sitemap
  • Policies
    • Privacy
    • Terms of Service
    • Do Not Sell My Personal Information
    • CA Notice
    • Ad Choices

Stay Connected

Facebook Twitter YouTube Instagram
©2022 Oxygen Media LLC. A Division of NBCUniversal