A fire leads investigators to re-examine an unusual death.

The naked body of a young woman is discovered in a remote area leading forensic investigators on a search for clues to her identity and the identity of her killer.

Investigators look into the disappearance of a student from Yale a few days before her wedding.

An almost-perfect crime was discovered because of a suitcase.

A young mother is murdered in a crowded parking lot in broad daylight.

When a popular handyman in a New Hampshire town is found murdered investigators follow forensic clues to a shocking conclusion.

A small Texas town terrorized by a serial killer and investigators use the forensic science to track them down and put the end to the violence.

Investigators use cell phone forensics to solve a puzzling murder in an affluent neighborhood.

Families of a couple who were victims of a brutal slaying begin receiving disturbing letters.

The sudden death of a woman triggers an investigation into what lead to her death.

When a young mom is found murdered in her own home, investigators search for clues on her cell phone and uncover evidence that could lead to the killer.

A cold case is reopened after a new forensic tool reveals new evidence.

Investigators initiate a search for a killer after making a gruesome discovery in a small-town church.

Investigators are left stumped when an insurance agent is murdered execution style in his office in broad daylight without a trace of fingerprints or the murder weapon at the scene, but an invisible clue is later uncovered that cracks the case.

When a healthy, young mother mysteriously dies after a minor car accident, police launch an investigation to uncover what really caused her death.

Investigators search for clues when a corpse is discovered in a body of water.