
Each case is pieced together like a jigsaw as a team of investigators links CCTV, home surveillance, police body camera, and mobile phone footage that builds the evidence necessary to catch a killer.

A businesswoman is in a whirlwind romance, but her newfound joy is cut short when her family finds her murdered; a bizarre confession reveals a deluded mind behind her death; in Northampton, England, a man with multiple stab wounds is discovered.

The dismembered body of a woman leaves a gay couple in the frame; a hidden camera provides vital evidence.

In the US and the UK, a trail of video footage is integral in solving two shocking murder cases.

In the United States, a man desperately calls the police for help after he is attacked.