Mark of a Serial Killer

Serial snipers John Allen Muhammad, Lee Boyd Malvo randomly killed in broad daylight and terrorized the DC metro area.

In the 1980s, a serial murderer targeted young men and left a trail of bodies across the Midwest. 

Ángel Reséndiz claimed he was an avenging angel sent by God to punish those he thought "were evil and deserved to die.”

Richard Rogers was just an average middle-aged man — but underneath his kindly veneer was who the media would call the “Last Call Killer."

Danny Rolling, known for killing five university students, aspired to be a "superstar" like Ted Bundy.

When sex workers in Dallas, Texas started showing up dead with their eyeballs missing, terror spread through the neighborhood, until a carpenter with a fondness for taxidermy was identified as their serial killer.

A carpenter by trade, Roger Kibbe struck fear in the hearts of California women for his deranged and repeated murders around Sacramento.

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.” 

When the ‘Bayou Strangler' was caught, he was "sort of braggadocious" as he described strangling and killing his victims.

Baton Rouge detectives track a serial strangler of women who got “satisfaction” from mutilating his victims.

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.

Even in Hawaii, there has been a serial killer. See which murderer stalked your state.

Young women in shallow graves was ruthless killer David Leonard Wood's grim signature. 

Anthony Shore used homemade ligatures to murder his victims, including a 9-year-old girl.

Familial DNA and pizza helped the LAPD finally catch the "Grim Sleeper" serial killer.

A duo known as the Serial Shooters stalked Phoenix, Arizona the same time the Baseline Killer did.

"Mark Of A Serial Killer," which returns to Oxygen on Saturday, April 2 at 8/7c, takes a deep dive into the most disturbing murder cases of all time.

In the 1980s, Larry Eyler, a vicious murderer who preyed on young men, became known as the Highway Killer.

In the 1990s, women were found dead in homes that had been set on fire across Chicago.

Between 1993 and 1998, a Chicago serial killer preyed upon women in the Englewood community.