The disappearance of a 22-year-old nursing assistant. When police checked local CCTV footage, they discovered that Carlesha Freeland-Gaither was abducted on camera.

A young woman is found dead in a Texas landfill. Detectives turn to their only witnesses: video cameras that captured the murderer's attempt to cover his tracks.

How, when a teenager went missing, detectives struggled for leads. When surveillance cameras reveals her kidnapping, the case became a race to bring her home alive.

In 2014, Jessica Padgett disappears. Surveillance cameras show her driving into a parking lot and walking down an alley, never to return. What happened to her?

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In 2011, Patty Ayala is murdered at the Burger King where she works. Police turn to surveillance video - and see a brutal killer emerging from the shadows.

In 2009, Philip Gatusso is murdered in the quiet town of Fargo. When police can't find any leads, they turn to a witness that never sleeps - surveillance video.

In 2014, Kimberly Robertson's battered body is found on a sidewalk after a date with her boyfriend. Can CCTV footage help detectives identify her killer?

Family man Dr David Cornbleet is brutally murdered in his office. Police must rely on CCTV images of man with a concealed face to lead them to the killer.

Nathan Trapuzzano is shot dead while taking his morning walk. Security footage from the scene shows the final shocking moments of Trapuzzano's life, but it may not be enough to help police hunt down his killer.

17-year-old Casey Crowder vanishes early one Sunday morning after her car runs out of gas outside of Dumas, Arkansas. With no leads and no witnesses, investigators are desperate to find any CCTV cameras that can lead them to the missing teenager.

On a late-night trip for food, Tosha Lampkin disappears. When her burnt out vehicle and remains are discovered CCTV provides detectives with their only lead.