School psychologist Mary Sherlach, who was killed on Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook Elementary School in Newtown, Conn., is pictured with her husband, Mark. (AP Photo/Courtesy of Mark Sherlach)

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School psychologist Mary Sherlach, who was killed on Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook Elementary School in Newtown, Conn., is pictured with her husband, Mark. (AP Photo/Courtesy of Mark Sherlach)