Detective Superintendent Steve Wilkins reinvestigates one of Pembrokeshire's most notorious unsolved crimes, known locally as the Coastal Path Murders.

With Cooper's second parole hearing looming closer and still no conclusive results from forensic testing, Detective Steve Wilkins and his team face Cooper head-on in three days of interviews.

A long-awaited forensic breakthrough gives Detective Steve Wilkins and his team the ammunition they need to finally arrest and prosecute John Cooper.

Examining John Cooper and the team that brought him down.