WILTON — The owner of the limousine that crashed in Schoharie, killing 18 people on board and two pedestrians, is a former FBI informant who testified in two high-profile terrorism cases, a state official confirmed Monday. Shahed "Malik" Hussain owns Prestige Limousine in Wilton, the official said. The limousine company is being scrutinized as federal and state investigators try to determine what caused the crash. Gov. Andrew M. Cuomo on Monday said the limo involved in Saturday's crash at the intersection of routes 30A and 30 had failed a state Department of Transportation inspection last month and should not have...