More than 400 students attend the elementary school for children from the village of Sandy Hook in Newtown, where officials had security posted at schools. The district has announced a partnership with the John Jay College of Criminal Justice of The City University of New York to review school security measures and make recommendations.
A lone gunman, 20-year-old Adam Lanza, killed 26 people at the school and committed suicide after fatally shooting his mother at their Newtown home. The motive remains unclear.
Town voters will be asked in October to approve plans to demolish the school where the massacre occurred and build a new one on the same property.