TV Guide Oxygen Tuesday

California police investigate a delivery truck driver, who was shot to death in his vehicle, and discover an affair that led to a deadly retribution.

Investigating the sweet beginnings of romances and intimate attachments with nightmarish, bitter endings.

When a wife begins to fear for her life in a broken marriage, she turns to a man with self-defense skills only to learn someone else is in danger.

A wife and mother is beaten and strangled in her home on Valentine's Day, and the primary suspect is a beloved member of the community.

In the 2018 murder of chef Dan Brophy in Portland, Ore., detectives make a chilling connection to a blog post written years before.

A healthy 38-year-old woman suddenly becomes violently ill and dies an hour later in a hospital with no visible marks or other indications of how she died.

Police uncover a love triangle, a complicated past and a neighbor obsessed after a National Guardsman is killed in an explosion.

The remains of a well-known mother and community member are found in the woods by State Troopers of a small island community.

When a woman is found viciously stabbed to death and her body thrown off a deserted road, a novice detective reopens the investigation almost a decade later.

Detectives spend more than two decades attempting to solve the murder of a local beauty queen found in the lake as her community grieves her death.

Police determine that an apartment fire was arson planned to cover up the murder of a woman, and detectives uncover unique evidence that leads to her killer.

After the killing of a small-town beautician an eyewitness comes forward, but it takes detectives years and a surprise tip to track down the murderer.

The face of crime fighting is changed as a determined father attempts to uncover who beat his daughter to death at the neighborhood pool.

After witnessing a brutal murder, police manage to track down the killer only to learn the victim and motive are not what they expected.

Decades after an 11-year-old barely missed seeing her mother's killer at their front door, Kelly and Steve are able to help her bring the killer to justice.

Kelly and Steve help the Kankakee Police Department in Illinois investigate the unsolved homicide of a beautiful woman and her unborn baby.

Kelly, Tonya and the Alcoa Police Department must determine if the perpetrator of the rape and murder of an 80-year-old woman was a random intruder.

Kelly and Steve help the Abilene Police Department catch the killer of an ambitious reporter.

A man stabs his wife and holds her head under the water in their pool to finish the job, and the entire episode is witnessed by the next-door neighbor.

In 1957 CA cops were on high alert searching for a man who had gone on a crime rampage, and 50 years later dogged detectives still worked the case.

When a bicycle rider is struck and fatally injured in a hit-and-run accident, forensic evidence provides the clues needed to identify the offending vehicle.

Police investigators begin to suspect that an elderly couple's son is responsible for the suspicious house fire that resulted in their deaths.

The murder case of a mother of two whose body was found little more than a day after she had been reported missing goes unsolved for 20 years.

A forensic artist utilizes extremely limited data in order to reconstruct the facial features of a woman whose bones were found in a Texas canyon.

A wife goes missing while on a vacation in Key West, and all police investigators can uncover is a pair of sandals that may or may not belong to her.

Police working on case concerning the apparent suicide of a mother of two decide to take another look at the evidence after learning of about woman's past.

Members of the Air Force Office of Special Investigators begin looking into the brutal murder of the wife of an Air Force serviceman in the Philippines.

Bomb attacks are typically difficult for investigators to solve, but forensic scientists manage to uncover miniscule pieces of plastic that hold a key clue.

The wife of an Air Force officer is found dead in her bed, and authorities initially believe the cause of death to be accidental suffocation by a laundry bag.

Police must search for a boy who goes missing mysteriously after his home burns down and they later find his body but the killer left behind numerous clues.

A highway patrolman is dispatched to a traffic accident; the car's interior is saturated with blood, and the coroner's accidental ruling stuns the officer

Shoe prints left by a careless criminal while dumping the body of his victim in an irrigation canal give authorities the evidence they need to track him down.

An in-depth look is taken at complicated investigations from beginning to end to determine if the case can be ruled an accident, murder or suicide.

To unravel the murder of a young mother, Kelly Siegler proves that the murder was planned by demonstrating how the killer's kids were used as an alibi.

The puzzling connection between two women who went missing decades apart uncovers a sinister secret along the busiest interstate in the country.

The puzzling connection between two women who went missing decades apart uncovers a sinister secret along the busiest interstate in the country.

Authorities close an investigation into the death of a policeman's wife after they reach a dead end in the case goes completely cold.