Six people are dead as a result of a killing spree in suburban Philadelphia. The casualties are related to what police are calling a domestic situation and have been reported at three different locations—in Souderton, Lansdale, and Lower Salford Township in Montgomery County. Police have identified the gunman as 35-year-old Bradley William Stone, who is suspected of fatally shooting his ex-wife and her teenage niece among others. Stone remains at large, and authorities have little information on where he is located. “As I stand here right now, we do not know where he is,” said Montgomery County District Attorney Risa Vetri Ferman. Officers in nearby Bucks County began searching Doylestown late Monday night after reports of a man dressed in fatigues and resembling Stone attempted to hijack a car.