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Police move near the scene of a shooting Monday, Dec. 15, 2014, 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. Police tell WPVI-TV the man is suspected of killing a five people Monday morning at three different homes northwest of Philadelphia.  (AP Photo/Matt Rourke)
Police move near the scene of a shooting Monday, Dec. 15, 2014, 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. Police tell WPVI-TV the man is suspected of killing a five people Monday morning at three different homes northwest of Philadelphia.  (AP Photo/Matt Rourke)

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    Cops barricade homes in gunman search

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Cops barricade homes in gunman search

At least four people are dead after shootings in three communities near Philadelphia, authorities say.

Cops barricade homes in gunman search

At least four people are dead after shootings in three communities near Philadelphia, authorities say.