Police are offering a £50,000 reward for information that finally solves the mystery of a baby girl whose body was found in a UK park. The baby, named Ava by officers, was discovered by a dog walker in Salford, Greater Manchester , one year ago on November 20 last year. Her body was buried in a 12cm deep grave, but she was discovered on top of the snow-covered wedge of grass at the entrance to the park. A badger, fox or large bird hunting for food in freezing conditions is thought to have