GARLAND, Texas (AP) - An essay that won a 6-year-old girl four tickets to a Hannah Montana concert began with the powerful line: ''My daddy died this year in Iraq.'' While gripping, it wasn't true - and now the girl may lose her tickets after her mom acknowledged to contest organizers it was all a lie. The sponsor of the contest was Club Libby Lu, a Chicago-based store that sells clothes, accessories and games intended for young girls. The saga began Friday with company officials surprising the girl at a Club Libby Lu at a mall in suburban Garland, about...