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After Lisa Knoefel is stabbed to death, her teenage foster daughter, Sabrina Zunich, admits to killing her, but the case grows infinitely more complicated when Lisa's husband, Kevin, is implicated in the crime.

Special education teacher Frank Rodriguez is a U.S. Navy veteran with few enemies, then he dies under mysterious circumstances, leaving investigators with the challenge of figuring out how he died and who would want him dead.

After car salesman Eric Somuah is found shot to death in his bed, a dogged detective refuses to give up on the investigation into his murder which is filled with twists and turns.

A woman brutally murdered in her bed. Then, two rapid fire 911 calls that shocked investigators, husband and son both immediately pointing fingers at each. Police knew one of them had to be spinning an incredible tale, but who killed Diane Kyne?

One murder in broad daylight. Then another brutal attack almost exactly a year later. Police discovered a chilling connection between the victims but did they have a serial killer on their hands? It was a race to connect the dots.

Southern California in the late 70's was famous for its party scene. But it was also the scene of a murder so savage it haunted detectives for more than three decades, driving them to find out who butchered a beautiful nurse in the prime of her life.

Southern California in the late 70's was famous for its party scene. But it was also the scene of a murder so savage it haunted detectives for more than three decades, driving them to find out who butchered a beautiful nurse in the prime of her life.

After a bizarre murder case goes cold, investigators get a DNA hit but cannot figure out the link between the victim and her suspected killer who are separated by 1,5000 miles.

After the brutal murder of a wealthy socialite, police zero in on a suspect but solving this crime will not be easy or quick.

Respected psychology professor Patricia Esparza believes she has escaped from a life of poverty and abuse, until a dark secret comes back to haunt her as the result of a determined investigator's work on a 20-year-old murder case.

A realtor is attacked and left for dead when he's lured to a home showing, resulting in numerous twists and turns.

What happened one spring night at an elite New England preparatory school leads to an accusation of sexual assault and an investigation into who is telling the truth.

While members of the U.S. military prize loyalty, a female commander's murder comes about as the result of a breathtaking betrayal.

In California, police strive to discover who would have wanted to murder a devoted family man.

A couple is found murdered among the collectibles they amassed in their home; investigators want to know who stood to gain the most from killing them and whether there is a connection between the memorabilia and their murders.

After real estate developer Gary Triano dies in a car bomb explosion at a resort, there are multiple suspects, including Triano's ex-wife, and it takes investigators nearly two decades to unravel the mystery of who killed him.

There are multiple suspects after real estate developer Gary Triano dies in a car bomb explosion, and it takes investigators nearly two decades to unravel the mystery of who killed him.

When 29-year old Carrie Olson vanishes, friends and family are stumped, unable to imagine who might have wanted to harm the young woman, who was excited about the new man in her life and the bright future ahead of her.

The 1990 stabbing death of a tourist in New York City led to a crackdown on crime, but one of the men arrested in the stabbing continues to maintain his innocence.

Retiree Ray Kotomski quenches his thirst with a cool drink on a warm August day in Pennsylvania, then he dies within hours, and investigators have to figure out whether a crime has been committed.

The morning after a cast party, 19-year-old musician and actress Jessie Blodgett is found strangled to death in her bed.

Sabine Buehler moves to an island off the coast of Florida, seeking her own slice of paradise, but her sudden disappearance leads police down a long and winding path in the sand as they try to find out what happened.