ATLANTA — Hours before a 17-year-old Alabama girl was killed in a bus crash, she wrote a final journal entry about her mission trip to Africa: "God has called me here and he's done so for a reason."Sarah Harmening of Huntsville jotted her thoughts about the trip to Botswana in a spiral-bound notebook, starting with her feelings of sadness and apprehension. She wrote that she turned to the Bible for comfort and by the end of the journal entry, it was clear she found trust in the Lord."We get to participate in his divine nature! How awesome is that?"...