California investigators race to track down a merciless thief and killer who “didn't want to have any witnesses left behind.”

DNA evidence, digital breadcrumbs and dogged detective work lead investigators to pair behind the fatal bludgeoning. 

The Golden State Killer is one of many who used Orange County, California as their hunting grounds.

The brutal bludgeoning death of a man known as a "peacemaker" shocked the Southern California coastal community.

The Oxygen True Crime series returns with even more murder cases that happened in the Southern California region. 

Over the course of 10 episodes, season 3 of the series delves into the dark underbelly of Southern California's opulent coastal communities.

Detectives uncovered a family plot and a fatal prophecy after a jeweler, Mario Hernandez, vanished.

Who targeted two young high school sweethearts who’d recently reunited and were headed to Bible study in Orange County? The killer was someone "furiously angry."

When a 62-year-old OC homeowner and mother named Carolyn Avdeef went missing, detectives suspected foul play. 

A teen who inserted himself into his neighbor’s brutal murder became the prime suspect. Surf-and-turf dinners led detectives to him.