A businessman drove himself to the hospital after a stranger slashed his throat Sunday afternoon in Petersburg. Bill Sizemore said he was visiting the future site of his planned mini-golf and go-kart business on South Crater Road when he saw a man standing in the woods nearby. Sizemore, who prides himself on helping those in need, went to check on the man. "When I get to about within 15 feet of him, I ask him, if he's OK," Sizemore said. "As I reach over, walk over and start pointing to the lake, he reaches behind me and cuts me, cuts...