By Philip Dewey & Anders Anglesey A drunk driver who fatally hit a 13-year-old boy returned to the scene and tried to stop people from helping him. Kaylan Hippsley was struck by a Ford Fiesta driven by Harley Whiteman, 19, in the village of Hirwaun, to the northwest of Cardiff, at about 6:15pm on February 29. He died despite the best efforts of people at the scene as Whiteman sped off. During sentencing at Merthyr Tydfil Crown Court today, it was heard Kaylan and three of his friends were seen on CCTV as they stood outside a Co-op store. He was wearing a light blue-grey hoodie and had his hood…