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Jimmy Greene, foreground left, Nelba Marquez-Greene, center, parents of Sandy Hook Elementary School shooting victim Ana Marquez-Greene, and Nicole Hockley, right, mother of victim Dylan Hockley, react during a news conference at Edmond Town Hall in Newtown, Conn., Monday, Jan. 14, 2013. One month after the mass shooting at the school, the parents joined a grassroots initiative called Sandy Hook Promise to support solutions for a safer community. (AP Photo/Jessica Hill)