GREENSBORO, N.C. (AP) - Authorities began combing through the wreckage Friday caused by a twister that killed one person and injured three others in central North Carolina - part of a storm system that swept through the Southeast and the Mid-Atlantic, leaving damaged homes and businesses in its wake. One person was killed when a small truck overturned in a parking lot just west of Greensboro, said Guilford County emergency services director Alan Perdue. He said three others were injured, one when the storm knocked down a wall at a distributing business, and two others when their vehicles flipped off the road. ...