Shannon Hicks,AP Photo/Newtown Bee
Connecticut State Police lead children from the Sandy Hook Elementary School in Newtown, Conn., following a reported shooting there, Dec. 14, 2012.
AP Photo/Jessica Hill
A woman waits to hear about her sister, a teacher, following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Reuters
Children are seen outside following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A man reacts following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A young girl cries following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
Parents leave a staging area after being reunited with their children following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Douglas Healey/Getty Images
Connecticut State Police walk on Dickson Street from the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
AP Photo/Jessica Hill
A mother runs with her children as police above canvass homes in the area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
Parents leave a staging area after being reunited with their children following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Reuters
Parents leave a staging area after being reunited with their children following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A mother hugs her daughter following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
State Police are on scene following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
Law enforcement canvass the area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
A man and woman leave the staging area for family around near the scene of a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Douglas Healey/Getty Images
Connecticut State Police walk on Dickson Street from the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
AP Photo/Jessica Hill
Law enforcement canvass an area nearby a school shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A law enforcement agent arrives to the area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
CBS
The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
Douglas Healey/Getty Images
Connecticut State Police walk near the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
AP Photo/The New Haven Register, Melanie Stengel
A young girl is comforted following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A woman waits to hear about her sister, a teacher, following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Douglas Healey/Getty Images
Connecticut State Police walk on Dickson Street from the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
AP Photo/Jessica Hill
Law enforcement canvass an area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
People embrace at a firehouse staging area for family around near the scene of a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Jessica Hill
Ambulances leave an area near the scene of a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A young girl is comforted following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/The New Haven Register, Melanie Stengel
A mother hugs her daughter following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Douglas Healey/Getty Images
Connecticut State Police walk near the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
AP Photo/Jessica Hill
Victims family leave a firehouse staging area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Dec. 14, 2012.
AP Photo/Julio Cortez
Officials are on the scene outside of Sandy Hook Elementary School in Newtown, Conn., where authorities say a gunman opened fire inside an elementary school in a shooting that left 27 people dead, including 18 children, Dec. 14, 2012.
AP Photo/Julio Cortez
This aerial photo shows Sandy Hook Elementary School in Newtown, Conn., right, where authorities say a gunman opened fire inside the school in a shooting that left 27 people dead, including 18 children, Dec. 14, 2012.
AP Photo/Jessica Hill
Gov. Dannel P. Malloy, right, talks with officials at a staging area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Reuters
Parents leave a staging area after being reunited with their children following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
AP Photo/Jessica Hill
A mother runs with her children as police above canvass homes in the area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles northeast of New York City, Dec. 14, 2012.
Douglas Healey/Getty Images
A woman holds a child as people line up to enter the Newtown Methodist Church near the the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
WFSB
Screen shot of live footage from the aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
WFSB
Screen shot of live footage from the aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
WFSB
Screen shot of live footage from the aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
AP Photo/Newtown Bee, Shannon Hicks
Connecticut State Police lead children from the Sandy Hook Elementary School in Newtown, Conn., following a reported shooting there, Dec. 14, 2012.
WFSB
The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
WFSB
The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
WFSB
The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
CBS
The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
CBS
The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.
AP Photo/Google
This satellite image provided by Google shows the Sandy Hook Elementary School in Newtown, Conn.
AP Photo/Charles Dharapak
White House press secretary Jay Carney listens to a follow up question regarding the school shooting in Newtown, Conn., after he told reporters that President Barack Obama is receiving updates on the situation, Dec. 14, 2012, during the daily press briefing at the White House in Washington.
Mandel Ngan/AFP/Getty Images
US President Barack Obama speaks during a previously unannounced appearance in the Brady Briefing Room of the White House on Dec. 14, 2012, in Washington, DC. Obama spoke following the shooting in a Connecticut Elementary School which left at least 27 people dead.