TV Schedule for Ozygen (KZLL-LD6) Tulsa, OK

Unknown Serial Killers of America

Exposing murderers who remain unknown to the public, although they are as deadly as Dahmer and Bundy.

The Real Murders of Orange County Nightmare in Laguna

After a beloved party planner at an iconic Laguna Beach, Calif., hotel is found murdered at home, investigators use high-tech tools and old-fashioned shoe leather to capture two killers and restore calm to the tight-knit beachside community.

The Real Murders of Orange County Wrong Place, Wrong Time

When a hockey player and a single mom are found dead in an upscale Newport Beach, Calif., condo, loved ones have no idea how they knew each other; the discovery of a link to another area attack launches the race to catch a killer.

Dateline: Secrets Uncovered Infatuation

A talented, young art student is murdered; the killer left no fingerprints and no DNA; police zero in on three fellow students and, soon, the dark portrait of a killer began to emerge.

Dateline: Secrets Uncovered Return to Manitowoc County

In Wisconsin, Steven Avery and his nephew, Brendan Dassey, are convicted of killing Teresa Halbach in a case that defies easy answers.

Dateline: Secrets Uncovered Secrets in Seattle

Fitness executive Nicole Pietz is married to the man of her dreams, and then she goes missing after failing to show up for dinner with her husband and friends.

Dateline: Secrets Uncovered The Silhouette

Debbie Kelly and Lars Ito make their marriage of opposites work; then, Debbie is shot dead in the dark of night; investigators ask whether her death is a case of mistaken identity or the bloody end to a marriage gone bad.

Dateline: Secrets Uncovered The Knock at the Door

Tara Ord is a beautiful young woman with big dreams, then she vanishes without a trace; it will take years for determined cold case detectives to uncover the long buried clue that blows this case wide open.

Dateline: Secrets Uncovered Swept Away

A young man from small town Indiana heads to Japan where he falls for a beautiful woman; then, they are caught up in one of the biggest natural disasters in history.