This photo provided by the family shows 29-year-old teacher Rachel Davino. Davino was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook elementary school in Newtown, Conn., killing 26 children and adults at the school. (Courtesy of the Davino family)
This photo provided by the family shows Catherine Hubbard. The girl was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook elementary school in Newtown, Conn., killing 26 children and adults at the school. (Courtesy of the Hubbard family)
This July 2010 photo provided by the Newtown Bee shows Dawn Lafferty Hochsprung, principal at Sandy Hook Elementary School, in Newtown, Conn. (AP Photo/Eliza Hallabeck; Courtesy Newton Bee)
This 2012 photo provided by the family shows Lauren Rousseau. Rousseau was killed Friday, Dec.14, 2012, when a gunman opened fire at Sandy Hook Elementary School, in Newtown, Conn., killing 26 children and adults at the school. ( (AP Photo/Courtesy of Rousseau Family))
In this undated photo provided by Mark Sherlach, Mark Sherlach and his wife, school psychologist Mary Sherlach, pose for a photo. Mary Sherlach was killed Friday, Dec. 14, 2012, when a gunman opened fire at Sandy Hook Elementary School, in Newtown, Conn., killing 26 children and adults at the school. (AP Photo/Courtesy of Mark Sherlach)