TV Guide Oxygen Wednesday

Police seek the assistance of a canine behavior expert when the only witnesses to the brutal murder of a woman in her home are the family dogs.

In 1998, a lawyer in Texas is found shot to death in her bed, and cameras follow along as the investigators go through the evidence.

A killer may be hiding in plain sight and searching for another victim in a South Carolina town, where investigators are determined to track down the murderer.

Questions arise surrounding a doting mother after a disturbing discovery is made in a New England town, where multiple suspects are investigated.

Keith Morrison reports on a case in which the family of a 31-year-old man demands answers to how a sudden illness could kill an otherwise healthy athlete.

Keith Morrison reports on a case in which the family of a 31-year-old man demands answers to how a sudden illness could kill an otherwise healthy athlete.

Josh Mankiewicz discusses the strange disappearance of a Colorado rancher whose friends suspect that something is off with the investigation.

A judge retires and moves to Florida to live out his days in the sun, but when he vanishes, the police unravel a ghastly connection to an abandoned golf course.

A Reno resort houses a mystery regarding a respected college professor, and the answers to his whereabouts lie under desert sands, far from his home.

When a librarian vanishes after a night of dancing, the investigation focuses on family secrets, but the truth is hiding behind a different kind of secret.

Police believe that the discovery of a body in a Florida backyard marks the end of a search for a missing woman, but it actually makes the mystery much deeper.

A record-breaking severe storm is thought to be the cause of death for a Missouri couple, but upon closer inspection, police begin to suspect foul play.

A mother from Michigan vanishes on an afternoon walk and the only eyewitness is a 10-year-old boy who may have seen the unthinkable.

Rangers at the Rocky Mountain National Park examine if a woman's fall was an accident or planned event as they question her husband.

A double homicide on Friday the 13th becomes more complicated when investigators uncover a secret marriage surrounded by a web of lies.

A family's dark secrets are exposed as investigators follow a tip that could help them solve a homicide case, where intruders harassed a couple and their son.

When a 15-year-old girl is adopted by her case worker, the teenager unexpectedly vanishes, and her parents discover that she has been hiding a secret.

After a local hero and fire chief is gunned down, a secret life is in danger of being brought to light as police attempt to uncover the killer's identity.

A quiet North Dakota college town is left in fear after student Mindy Morgenstern is found murdered in her off-campus apartment.

The investigation into the mysterious disappearance of a Canadian man sparks an international manhunt for an elusive killer with multiple false identities.

A secret past is brought to light when an investigation is launched into the death of a young beauty queen, who was about to start a future with her boyfriend.

The investigation into the mysterious disappearance of a Canadian man sparks an international manhunt for an elusive killer with multiple false identities.

Federal agents rush to track down a killer after a beloved girl disappears from a small Ohio town, where they cornfields may hide a disturbing truth.

When a field hand uncovers a human skull in a large backyard in Michigan, the close-knit community is torn apart as people fear for their safety.

Keith Morrison reports on a unique case of a double-life in which a man who seemingly had it all managed to fool everyone, right up until his arrest.

Keith Morrison reports on a unique case of a double-life in which a man who seemingly had it all managed to fool everyone, right up until his arrest.

An FBI agent's murdered body is found by his daughter in his own house, leading to an investigation in which police dig into the man's past to find the killer.