Detectives turn to CCTV footage following the shooting of 65-year-old veteran and grandfather Billy Connole while he was taking a nighttime walk in Loveland, CO in 2015. The surveillance images reveal that the driver of an old pickup truck could hold the key to identifying the man's killer...

After Cristina goes missing, detectives look for CCTV that may reveal her movements; when her cell pings at a location in Arkansas, detectives gather surveillance from the area in the hopes it will hold answers to Cristina's disappearance...