KILLERS : john william cooper - (the game show killer)-
Cooper had a history of crime, including 30 robberies and violent assault. He also appeared on the TV game show Bullseye in May 1989. Footage from the show was later used as evidence against him, comparing his image with a sketch of a suspect in the Dixons' murder. Cooper was sentenced for 14 years in 1998, (served 10 years) for burglary and robbery, 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, in April 2009 the police were able to identify Cooper's shotgun as the murder weapon. He was arrested in May 2009 and was convicted in May 2011 for the double murders and sexual assaults. In September 2011, he launched an appeal against his convictions. His appeal was rejected in November 2012.