Nelba Marquez-Greene's daughter, Ana Grace, was one of the 20 first-graders killed December 14, when 20-year-old Adam Lanza arrived at the school with a rifle in hand. Six educators were also fatally shot by Lanza before he killed himself.
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Nelba Marquez-Greene lost her 6-year-old daughter in the tragedy
When Nelba Marquez-Greene lost her 6-year-old daughter in the Sandy Hook Elementary shooting in Newtown, Connecticut, she chose to cope with her loss in a unique way: by writing a letter.