Chasing Criminals

A couple learns their spicy lifestyle may not be a secret to everyone.

A pregnant woman goes missing, then reappears.

Latrese Curtis is found stabbed to death on the side of Highway 540 in Durham, North Carolina; when detectives uncover that Latrese lived a double life, a twisted tale of jealousy, rage, and unrequited love emerges.

A Texas housewife finds it easier to keep a secret than to live with one.

A couple is ravaged by a crime so convoluted it nearly defies imagination.

A missing mother's ransom notes lead to a mad chase and a disturbing twist.

A dead trucker unlocks a conspiracy, but he may not be the only victim.

A ranch heir vanishes, and police find out whether blood is thicker than water.

When 18-month-old Devon Manderach's body is found in a park outside Philadelphia, police suspect her parents; when her father calls looking for both the toddler and her mother, police learn the case is more horrific and tragic than they imagined.

When Bill and Catherine Stuart are executed in their home along with their 3-year-old daughter, police look to surviving daughter Miriam for clues; her description of the killer leads detectives deep into Philadelphia's criminal underworld.

When Ellen Robb's husband finds her murdered in their quiet suburban Philadelphia home, evidence points to a robbery gone wrong; however, police dig deeper into the couple's life, and they learn the motive may be far more sinister.

When Helen Bernstein is found dead in the bathtub of her Chestnut Hill high-rise, she appears to have died of natural causes; when an autopsy reveals she was strangled, detectives ask who would want Helen dead and why.

When 78-year-old George Volz's family finds him hogtied and decomposing in his Philadelphia row house, police turn to the elderly man's neighbors for help.

The city of Philadelphia is in shock after a hard-working mother is gunned down on a Center City sidewalk; detectives work around the clock to catch the killer, who turns out to be far more dangerous than they could have ever imagined.

When Asia Adams' body is discovered after a fire in her home, police are unsure if her death was an accident or arson; when the investigation reveals the truly horrific nature of her murder, police find themselves pursuing an elusive killer.

When beloved disc jockey Alberto Martino is found bludgeoned to death outside his radio station, it appears to be a robbery gone wrong; police quickly learn that Martino was not a random victim but the focus of a carefully orchestrated homicide.

In August 1992, millionaire Tennessee landowner Allen Roberts arrives home to discover his wife is missing; he tells police he received a ransom call for Doe's safe return; slowly, the town turns on Allen, until police take note of one odd neighbor.

Debora Gail Moody vanishes into thin air from her home in Ludowici Ga.; a decade passes in her case with no answers; her family persists by posting billboards all around town; 11 years later, a confession reveals the chilling details.

Businesspeople John and Liz Calvert vanish in 2008 from Hilton Head, S.C.; friends, investigators and local reporters are shocked and in disbelief that a couple could disappear without a trace in such a peaceful place.

Alisha Sidie disappears from a small vacation town in Wisconsin in 2008; family, friends, local reporters and police investigators recall the fear and sadness the crime instilled on their tight community.

Alexis Murphy, who is a rising social media star and high school athlete, disappears along the infamous Route 29 in August 2013; a massive search by local and federal authorities yields zero results, until a security video reveals a chilling clue.

Joel Larson is shot to death in a safe haven community for gay people in the 1990s Minneapolis; two more shootings terrorize people in the community as they realize a serial killer lives among them.