In San Antonio, Christopher Duncan leaves his apartment never to return again; police have little to go on until surveillance footage offers up the possible identity of a dangerous killer.

15-year-old Sierra LaMar leaves for school like any other day, only to disappear without a trace. Is this just another typical runaway or did something a lot worse happen to…

18-year-old Kyle Farishian is working the late shift at a 7-Eleven on Halloween when he is brutally attacked by a masked assailant. With no physical evidence, detectives scrutinize the convenience…

Chinese exchange student, Yingying Zhang, mysteriously vanishes from the University of Illinois campus. Police and FBI turn to video surveillance footage to uncover the shocking and sinister reality and bring…

On Valentine’s Day 2015, James Enright, 27, is stabbed to death outside a busy train station in Burnaby, Canada; despite cell phone footage of the attack, police struggle to identify…

The body of 26-year-old Celina Peterson is found in an alley in the South Park neighborhood of Seattle. When police recover surveillance footage from across the neighborhood, they begin to…

On April 23, 2016, car salesman Hufracio Arteaga is found stabbed to death in his Michigan City, Ind., office; with no witnesses, investigators use surveillance cameras from an adjacent building…

On Nov. 7, 2014, 69-year old Ina Clare Richardson is found brutally murdered in a public park in Clarkston, Wash.; with no witnesses, investigators turn to surveillance cameras to piece…

On March 29, 2016, Louise Dickey is discovered murdered in a bath of her own blood; with no imaginable motive for the homicide and no witnesses, detectives seek out surveillance…

In Ventura County, California, a young mother fails to return home after desperately searching for a job to support her family. In Henry County, Georgia, a 50 year old businessman…