A man threw a 10-year-old boy off a cliff after the child tried to stop him from raping his sister, a court has heard. Anthony Stocks, 54, allegedly took the child down to Brighton from London without his mum’s knowledge, before pushing him over the edge of a 100ft drop in front of horrified onlookers. Witnesses describe hearing a “shriek” and seeing a “small shape” fall down the side of Ovingdean cliff face before the child hit the concrete below. The 10-year-old miraculously survived the fall. Jurors at Oxford Crown Court heard that the incident, which took place in 2020, was initially treat…