College student Kenia Monge disappears without a trace in Denver, CO. The family’s search for their 19-year-old daughter hits every dead end -- until detectives uncover chilling surveillance footage revealing exactly what happened to her.

Mother of two Nikki Whitehead is brutally murdered within her own home. Police suspect she may have known her killer. Polygraphs and CCTV footage help reveal the unexpected and horrific truth.

In 2012, 21-year-old Mickey Shunick is missing after a night out in Lafayette, LA. Her family is terrified and mobilizes the local community to help search for her. Police are unable to find any trace of the Louisiana student -- until they spot her on surveillance video.

19-year-old college student Katie Poirier vanishes while working the graveyard shift at a gas station. It’s a family’s worst nightmare come true. Grainy security footage reveals an answer but leaves a community in fear.

24-year-old former cheerleader Amy Lord is reported missing by her co-workers in South Boston. Police first find her burned car and then, her body. Incredible footage from five ATMs and outside her apartment building capture the exact moment she was taken by her killer.

In Tempe, AZ, millionaire entrepreneur Rick Chance is brutally gunned down in a hotel room. The senseless murder leaves his family heartbroken. To catch the killer, detectives turn to their most reliable witness -- surveillance video.

Bright, young nursing student Michelle Le vanishes without a trace. An old friend of hers points a finger at Michelle’s ex-boyfriend. Cops discover footage that shows Michelle’s car driving around the parking lot where she vanished, but who is the driver?

After dropping her two boys at school in Coral Springs, FL, Surya Toha vanishes without a trace. Her husband is devastated and detectives have few clues to work with... until chilling CCTV footage reveals exactly what happened to her.

15-year-old Elizabeth Ennen was last seen when a friend dropped her off at home. Her distraught mother Virginia says she never walked through the door. Police are baffled until they uncover a piece of CCTV that turns the case in an unexpected direction.

Young student Dru Sjodin suddenly vanishes after her shift at Victoria's Secret in Grand Forks, ND. Investigators turn to the best eyewitness they have - surveillance camera footage. Dru's last movements are traced and reveal the chilling reason for her disappearance.

After Keith Reed is found gunned down on his doorstep, what seems like a possible crime of passion is turned on its head after a surprise discovery. Surveillance footage helps police unravel the mystery behind Keith’s death and just who killed him.

In September 2012, University of Florida freshman Christian Aguilar mysteriously vanishes from campus. His girlfriend, father and best friend are in turmoil. Police have nowhere to turn -- until a CCTV recording turns the case in a shocking new direction.

On a freezing winter night, a hardworking mother doesn’t make it home from work. As dawn breaks, her body is found in a churchyard. With the city in panic, police turn to the city’s surveillance cameras hoping they can help catch a brutal murderer.