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Sandy Hook Elementary School Shooting

A woman waits to hear about her sister, a teacher, following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012. Credit: Jessica Hill/AP Photo

Elementary school shooting in Connecticut

At least 27 people, including school children, were killed when at least one shooter opened fire at an elementary school in Newtown, Connecticut.