An image from a Connecticut State Police report on the shootings at Sandy Hook Elementary School shows a scene at 36 Yogananda St. in Newtown, Conn., where Adam Lanza killed his mother before driving to the school and killing 26 students and staff last December. AP hide caption

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In June, people gathered in Newtown, Conn., to remember the massacre at Sandy Hook Elementary School. Spencer Platt/Getty Images hide caption

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Voters in Newtown, Conn., have approved a plan to use nearly $50 million in state funds to demolish Sandy Hook Elementary and build a new school in its place. This photo provided by Craig Hoekenga shows his son Trey, a kindergarten student at Sandy Hook, on the school bus this year. The window has a quote from the late principal, Dawn Hochsprung, who was killed in last December's mass shooting. Craig Hoekenga/AP hide caption

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Family members of those killed in the Newtown, Conn., school shooting stand together as President Obama speaks at the White House on Wednesday, after gun control measures were defeated in the Senate. In the foreground are Mark and Jackie Barden with their children Natalie and James, who lost Daniel. Behind them are Nicole Hockley, mother of Dylan, and Jeremy Richman, father of Avielle. Carolyn Kaster/AP hide caption

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A Bushmaster rifle, similar to the type used by Adam Lanza during the shooting at Sandy Hook Elementary School, and some ammunition magazines. The sale and possession of this type of weapon, and high-capacity magazines, will be severely restricted in Connecticut under new legislation. Michelle McLoughlin /Reuters /Landov hide caption

itoggle caption Michelle McLoughlin /Reuters /Landov

Dec. 18, 2012: Crime scene tape stretches across the property outside the home where Adam Lanza lived with his mother, Nancy Lanza. Inside, police found weapons and other evidence. Lucas Jackson /Reuters /Landov hide caption

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Some of the many cards, letters and artwork sent to Newtown from all over the world was on display at the Newtown Municipal Center on Jan. 30. The items were recently moved to temporary storage. Courtesy of Ross MacDonald hide caption

itoggle caption Courtesy of Ross MacDonald

Early Thursday morning, a school bus carrying students from Sandy Hook Elementary headed to their new school. Timothy A. Clary/AFP/Getty Images hide caption

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After the attack: Balloons hung from the Sandy Hook Elementary School sign on Dec. 15. On Dec. 14, six adults and 20 children were killed there before the gunman took his own life. Shannon Stapleton/Reuters /Landov hide caption

itoggle caption Shannon Stapleton/Reuters /Landov