TV Schedule for Oxygen (KHRR4) Tucson, AZ

Dateline: Secrets Uncovered Under a Halloween Moon

It is just before Halloween; Joel Lovelien and his fiancé head to a local bar packed with people in costume; Joel steps outside and walks into a troubling mystery.

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 The Murdaugh Murders: Inside the Investigation

Lead detectives break their silence on the investigation into once-prominent South Carolina attorney Alex Murdaugh.

Dateline: Secrets Uncovered 10 Minutes to Sunset

When a pediatric dentist is found dead, police uncover a complex plot and their suspect leads investigators on an international manhunt; the lead detective speaks out for the first time.

Dateline: Secrets Uncovered The Sleepover

A devoted mother is found shot to death in her minivan; the case stays cold until old memories resurface and new revelations come to light, dividing her Florida family.

Dateline: Secrets Uncovered The Hands of a Killer

When former Sen. Linda Collins of Arkansas is found fatally stabbed outside her home, detectives investigate if her murder is connected to her political career or her personal life. The victim's children speak out about the case.

Dateline: Secrets Uncovered The Day the Music Died

After a plastic surgeon and local musician is murdered in his Asheville home, investigators uncover a trail of clues pointing to an unlikely killer; new details emerge from exclusive TV interviews with insiders close to the case.

Dateline: Secrets Uncovered Righteous Obsession

The investigation into a home invasion involving a local business owner takes a turn when an unlikely witness comes forward; new details emerge from interviews.

Dateline Secrets of the Sliding Door New

A beloved Staten Island teacher is found dead in the home she shared with her husband; an unknown number in her cell phone leads investigators to reveal troubles in her seemingly idyllic life -- and to ultimately unearth her killer.

Killer Grannies Sneak Peek #1 New

Dateline: Secrets Uncovered On the Hunt for The Zombie Hunter

The murders of two young women near a Phoenix canal remain unsolved for more than 20 years until a team of cold case detectives take on the case and investigate a man known as the Zombie Hunter.

Dateline: Secrets Uncovered Footprints in the Snow

The missing-persons case of 12-year-old Jonelle Matthews in Colorado remains a mystery for more than three decades until detectives narrow in on a suspect whose bizarre behavior after her disappearance hints at something much more sinister.

Dateline: Secrets Uncovered The Girl With the Hibiscus Tattoo

A group of women help bring down a smooth-talking serial predator turned killer who lured young women with promises of fame and fortune.

Dateline The Shadow

A man from Iowa is shot to death while sleeping in bed next to his fiancee; coincidences and quick thinking lead to surprising information regarding the killer's motive.

Dateline The Shadow

A man from Iowa is shot to death while sleeping in bed next to his fiancee; coincidences and quick thinking lead to surprising information regarding the killer's motive.

Dateline The Devil and Bobbi Parker

In 1994, convicted murderer Randolph Dial escapes from a prison in Oklahoma and takes the deputy warden's wife, Bobbi Parker, with him, then, 10 years later, Parker is found living with Dial on a farm in Texas.