When a teenager is found viciously murdered, police must retrace her last steps alive to identify her killer.

An Illinois family suffers a gut-wrenching journey through the justice system after their 10-year-old daughter is found savagely murdered.

A 12-year-old girl is kidnapped, following a brutal home invasion... Can police find her and her abductor before its too late?

A young woman about to start a Hollywood career mysteriously disappears off Interstate 10.

When an 8-year-old girl vanishes on the way home from school, her family and police are sent on a tormenting search for answers. [also marked as S13:E14]

A 14-year-old girl is killed while walking her dog. When law enforcement analyzes her cell phone, it reveals a series of shocking and heartbreaking clues that ultimately lead investigators straight to her killer.

A loving mother of three is found mysteriously shot to death just steps from her home. There are few clues at the crime scene beyond a single bullet fragment and two unknown fingerprints. Will they be enough to find the killer?

A teenage girl's abduction and murder leaves a small Kentucky town reeling. The investigation and its resolution shatters the close-knit community and ultimately destroys a loving family.

A hidden clue could be the key to solving the vicious murder of a Massachusetts woman. [also marked as S14:E15]

When a young woman mysteriously disappears before her final shift at a Maryland hospital, her family begins a decades long search for answers.

The discovery of a beautiful military police officer murdered in her own home sends police on a twisted journey for answers.

A young woman is found murdered in a busy mall parking lot. Despite a treasure trove of evidence, detectives reach a crossroads in the investigation that could make solving the case a challenge they never imagined.

Two women are found stabbed to death three days before Christmas. A third person, a male coworker, is wounded and claims an intruder attacked them. As investigators study the evidence, it looks like the crime scene was staged.

Police believe there may be a dangerous predator loose on the streets of Stockton, California, and with each attack it appears the perpetrator is growing more violent.

Police try to retrace a young mother's last known movements in a desperate attempt to solve her mysterious disappearance.

A teenage girl is found murdered the night before her college dream is about to begin. The case remains a mystery until another beautiful teen is found dead a few miles away. The investigation leads police to a sadistic predator.

A woman suddenly disappears in Minnesota. Her husband claims she was involved with another man, and his theory is backed up by over 250 intimate emails. Investigators question if her online love affair turned deadly. Will a trail of emails lead police to a vicious killer?

Many stories don't end when the jury delivers its verdict. Three amazing cases where the quest for justice rages on.

Police struggle to find a vicious killer despite having DNA evidence and a videotape of the suspect.

A cool case team reopens the investigation into the murder of 36-year-old mother Linda Robinson who was savagely murdered while her 7-year-old niece is asleep in the next room.