Pte Geoff Gray was 17 years old when he died at Deepcut Barracks in Surrey. He had two gunshot wounds to his head. It was just days after the 9/11 attacks on New York and the UK, and its military bases were on high alert. The original inquest recorded an open verdict. His parents, Geoff and Diane Gray, have fought for more than a decade to get a second inquest and learn the truth about what happened.