At least 6 dead in Pennsylvania shooting

Police move with a person in the back of a police vehicle near the scene of a shooting in Souderton, Pa. Police are surrounding a home in Souderton, outside Philadelphia, where a suspect is believed to have barricaded himself after shootings at multiple homes.  (Matt Rourke / Associated Press)

Hunter Schueck, center, and her sister Courtney stand near a home in Souderton, Pa., where a suspect was believed to have been barricaded inside after shootings at multiple homes.   (Matt Rourke / Associated Press)

Police move near a home in Souderton, Pa., where a suspect is believed to have barricaded himself inside after shootings at multiple homes.   (Matt Rourke / Associated Press)

Police gather near a home in Souderton, Pa., where suspect Bradley William Stone is believed to have barricaded himself inside after shootings at multiple homes.   (Matt Rourke / Associated Press)

A police officer moves near a home in Souderton, Pa., where a suspect is believed to have barricaded himself inside after shootings at multiple homes.   (Matt Rourke / Associated Press)

A SWAT team gathers near the scene of a shooting in Souderton, Pa., outside Philadelphia. Bradley William Stone, 35, was suspected in several deaths Monday morning at three different homes in Philadelphia’s northwest suburbs.   (Bill Fraser / Associated Press)