1. Connecticut School Shooting

A woman waits to hear about her sister, a teacher, following a shooting at the Sandy Hook Elementary School in Newtown, Conn. (Photo: AP)

2. Connecticut School Shooting

In this photo provided by the Newtown Bee, Connecticut State Police lead children from the Sandy Hook Elementary School in Newtown, Conn. (Photo: Newtown Bee/AP)

3. Connecticut School Shooting

Parents leave a staging area after being reunited with their children following a shooting at the Sandy Hook Elementary School in Newtown, Conn. (Photo: AP)

4. Connecticut School Shooting

This satellite image provided by Google shows the Sandy Hook Elementary School in Newtown, Conn. (Photo: AP)

5. Connecticut School Shooting

A woman lays flowers at the site of a makeshift memorial for school shooting victims at the village of Sandy Hook in Newtown. (Photo: AP)

6. Connecticut School Shooting

A child’s message rests with a memorial for shooting victims, Sunday, Dec. 16, 2012, in Newtown, Conn. (Photo: AP)

7. Connecticut School Shooting

Mourners looks at the names on a U.S. flag of the Sandy Hook Elementary School shooting victims at a sidewalk memorial. (Photo: AP)

8. Connecticut School Shooting

A sign hangs in the window of a clothing store Sunday, Dec. 16, 2012 in Newtown. (Photo: AP)

9. Connecticut School Shooting

Teddy bears, each representing a victim of the Sandy Hook Elementary School shooting, sit on a wall at a sidewalk memorial. (Photo: AP)

10. Connecticut School Shooting

Newtown Police Officer Maryhelen McCarthy places flowers at a makeshift memorial outside St. Rose of Lima Roman Catholic Church. (Photo:AP)

11. Connecticut School Shooting

A U.S. flag flies at half staff outside the Newtown High School before President Barack Obama is scheduled to attend a memorial for the victims of the Sandy Hook Elementary School shooting, (Photo: AP)