Guarded Secrets
A security guard disappeared from his post without a trace; his remains were found a year later in a remote camp site. More than a decade would pass before a phone call breathed life into the cold case, and a paint smear on the bottom of the victim's boot helped scientists determine what happened during the last hour of his life.
More from Season 12
Episode 1
Sharper Image
When a young girl was found dead, police quickly arrested the most likely suspect. But cutting-edge technology from NASA enabled a forensic odontologist to prove the wrong man was behind bars. With the killer still on the loose, the investigation was far from over.
Episode 2
Insulated Evidence
It's usually easy to determine how a criminal entered the crime scene. But in this case, it was far from clear. It looked like the killer vanished into thin air...and perhaps he had.
Episode 3
Cold Hearted
When a young fireman died from what appeared to be serious but undiagnosed heart disease, his family and friends were devastated but they had no proof of foul play. Then they learned that, six years earlier in a nearby town, a young police officer died in the same way. The men had one thing in common: at the time of their deaths, they were married to the same woman.
Episode 4
Wheel of Misfortune
Security cameras in a casino tracked a young woman's movements until shortly before she disappeared. She was never seen again, but through the evidence she left behind, she was able to tell investigators what happened to her and who was responsible.
Episode 5
Quite a Spectacle
It was one of the most unusual cases in forensic history. Investigators had to find a way to solve a murder case with evidence which consisted of a squashed tomato found at the crime scene, and tiny, pinpoint reflections of light in a photograph. Would it be enough to catch a killer?
Episode 6
Transaction Failed
When a dedicated, well-respected teacher disappeared, police had to determine if she'd gone on vacation without telling anyone, or if she was the victim of foul play. Investigators turned to forensic science, hoping to find the answers they needed.
