 Hours later, as crews sifted through the wreckage, they found a woman who had also been killed under a pile of rubble. Alan Doubleday with Prince George's County Fire and Rescue says no word on the cause. Our fire investigators are here. They're currently operating on the scene to comb through debris. For now, the entire building and all 12 apartments will have to be shut down. In Largo, Luke Lugar, WTOP News.