BLACKSHEAR — Adam Kelly and Griffin Olson had both been waiting for their moment. When it arrived, the North Hall seniors delivered. Kelly tossed five scoreless innings of relief against Pierce County in Game 2 of the Class AAA state quarterfinals, and Olson launched a two-run, walk-off home run in the seventh inning to give the Trojans a 5-4 comeback victory on Tuesday at the Bears’ field.