Sandy Hook Elementary School Shooting
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ABC News looks back at one of the worst mass shootings in U.S. history, nearly 5 years after twenty children and six adults were killed at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
Pictures of victims of the Sandy Hook Elementary School shooting are seen on artificial roses at a roadside memorial on Dec. 20, 2012, in Newtown, Conn.
Pictures of victims of the Sandy Hook Elementary School shooting are seen on artificial roses at a roadside memorial on Dec. 20, 2012, in Newtown, Conn.
