INDEPENDENCE, Ky. -- When Derrick Carlson left for a school field trip last month, his parents never dreamed it would be the last time they would ever see him alive. "He had his group of friends and he was coming into his own," said his father, Ed Carlson. Derrick had gone on a field trip to Wright-Patterson Air Force Base in Dayton, Ohio, with his ninth-grade class at Simon Kenton High School, and authorities said he tried to run across a road to a fast-food restaurant and was hit by a car. “Everybody’s devastated,” Carlson said. “It’s not something you...