Laura Dickinson was always close to her family members, working beside them in their coffee shop in Hastings, Mich. Even when she was away at college at Eastern Michigan University, she spoke to her parents and boyfriend every day. So when Laura didn't return a couple of calls in December, her parents, Bob and Deb Dickinson, thought it was strange but chalked it up to the hectic end of the semester. "I called her on Wednesday and there was no answer," Bob said. But after a few days, when she still hadn't called, they began to worry and called university...