Three murders - unsolved but never forgotten. Thirty years on, can DCI Bethall find the serial killer who terrorised 1970s Port Talbot?Three murders - unsolved but never forgotten. Thirty years on, can DCI Bethall find the serial killer who terrorised 1970s Port Talbot?Three murders - unsolved but never forgotten. Thirty years on, can DCI Bethall find the serial killer who terrorised 1970s Port Talbot?