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Investigators also were seeking to determine who owned several guns that were found at the home, one of which was a semi-automatic military-style rifle.
http://www.huffingtonpost.com/2013/0...n_2516424.html

The police statement said a "male juvenile" is in custody, charged with two counts of murder and three counts of "child abuse resulting in death."
https://www.google.com/hostednews/af...885ef5416eb.01