John William Cooper is a Welshserial killer and diagnosedpsychopath. On 26 May 2011, Cooper was given a whole life order for the 1985 double murder of siblings Richard and Helen Thomas, and the 1989 double murder of Peter and Gwenda Dixon. Cooper was also sentenced for the rape of a 16-year-old girl and a sexual assault on a 15-year-old girl, both carried out at gunpoint, in March 1996, in woodland behind the Mount Estate, Milford Haven, Pembrokeshire. Cooper had a history of crime, including 30 robberies and violent assault. Footage from the TV game show Bullseye, in which he appeared as a contestant in May 1989, was later used as evidence against him, comparing his image with a sketch of a suspect in the Dixons' murder. Cooper was sentenced to fourteen years in 1998 for robbery and burglary, enabling the police to collect further evidence against him. He was released from prison in January 2009. Through a cold case review, and subsequent developments in DNA and forensic science, the police were able to identify Cooper's shotgun as the murder weapon in April 2009. Cooper was arrested in May 2009 and was convicted in May 2011 for the double murders and sexual assaults and sentenced to a whole life order, which means he will never be released from prison. In September 2011, he launched an appeal against his convictions. His appeal was rejected in November 2012.
History of crimes
On 22 December 1985, Cooper targeted a three-story farmhouse at Scoveston Park, killing brother and sister Richard and Helen Thomas, and later burning down the house. On 28 May 1989, Cooper participated in a recording of the ITV gameshow Bullseye. Footage from the show was later used to match him to witness descriptions. Cooper remarked to host Jim Bowen that he had an unusual hobby of scuba diving, with Bowen remarking that Pembrokeshire was the ideal location. On 29 June 1989, Peter and Gwenda Dixon were on holiday in Pembrokeshire and were due to take their last walk along the coastal path when they failed to return. Their bodies were later found along the coastal path. Cooper tied the couple up, demanded they hand out their bank card and then forced them to disclose their personal identification number. Cooper, carrying a sawn-off shotgun, robbed Peter Dixon of £300 and shot the couple in the face at point blank range.
Documentaries and television
The UK television seriesReal Crime broadcast a documentary about Cooper, in November 2011. On 24 May 2016, the Welsh language television channel S4C broadcast a documentary in the series Y Ditectif about the way in which evidence against Cooper was gathered using the latest forensic techniques available at the time, the strategy used by Dyfed-Powys Police in interviewing him and his eventual conviction. On 27 September 2016, the ITV Cymru Wales television channel broadcast a documentary in the series Crime Files which examined how police solved the two double murder cases in Pembrokeshire including an interview with the detective who was tasked with interviewing Cooper. On 12 July 2018, a documentary about Cooper named 'The Gameshow Serial Killer: Police Tapes' aired on ITV as part of the channel's 'Crime and Punishment' season. On 29 January 2019, the UK version of digital channel CBS Reality premiered a further documentary about Cooper's crimes in an episode of its Murder by the Seatrue crime series. In January 2020 ITV announced a new three-part TV Mini-series entitled:The Pembrokeshire Murders
