In March 1984 Hilda Murrell, a 78-year-old distinguished rose-grower, was found dead in woodland near her home town of Shrewsbury. Despite one of the biggest-ever British police investigations, detectives failed to find her killer and conspiracy theories muddied the waters still further. Police worked quietly and doggedly at their investigation, but it would take a cold case review 19 years later to finally reveal the suspect and tie him to the critical evidence.This case is a perfect example of how modern technology helped crack a cold case. Through police video and crime scene photographs we piece together the most crucial pieces of evidence. We've filmed with the only detective that was part of the case in 1984 and then carried out the actual arrest of Andrew George in 2003, who had been a 16 year old petty thief when he murdered Hilda Murrell, and thought he had got away with it.