BOCA RATON -- A 16-year-old boy killed during a seemingly innocent late-night prank was shot in the back, according to emergency room records. The medical reports were released Saturday by the attorney for the teen's parents, who said they show he posed no threat to the neighbor who shot him. Mark Andrew Drewes and a friend had been knocking on neighbors' doors and then running away Oct. 25. He was shot by neighbor Jay Steven Levin, 40, who told police he mistook the 6-foot-2 teen for a burglar. "It shows he was running away," said the Drewes' attorney, Robert Montgomery....