"This is bigger than just about guns," he added. "It's about how we treat people with mental illness, how we intervene, how we get them the care they need, how we protect our schools. It's just so sad."
Contributing to this report were Associated Press writers Allen G. Breed, Helen O'Neill, John Christoffersen and Katie Zezima in Newtown; Christine Armario in Miami; and Julie Pace in Washington.
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