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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. It was the worst school shooting in the country's history. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. It was the worst school shooting in the country's history. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

In this photo provided by the Newtown Bee, Connecticut State Police lead children from the Sandy Hook Elementary School in Newtown, Conn., following a reported shooting there Friday, Dec. 14, 2012. (AP Photo/Newtown Bee, Shannon Hicks) MANDATORY CREDIT Photo: AP

Officials stand by a triage area near Sandy Hook Elementary School in Newtown, Conn., where authorities say a gunman opened fire inside the school in a shooting that left 27 people dead, including 20 children, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, AP

Heavily armed Connecticut State troopers are on scene at the Sandy Hook Elementary School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

A Connecticut State Police helicopter hovers over the scene near the Sandy Hook School following a shooting , Friday, Dec. 14, 2012 in Newtown, Conn.(AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Heavily armed Connecticut State troopers are on the scene at the Sandy Hook School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Heavily armed Connecticut State troopers are on scene at the Sandy Hook Elementary School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Schoolchildren wait for their parents at the Sandy Hook firehouse following a mass shooting at Sandy Hook Elementary School, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

A young girl is comforted following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

A mother hugs her daughter following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

A mother hugs her daughter following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

This aerial photo shows Sandy Hook Elementary School in Newtown, Conn., where authorities say a gunman opened fire inside the school in a shooting that left 27 people dead, including 20 young children, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, AP

A man reacts following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

A young girl is comforted following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

Parents walk away from the Sandy Hook Elementary School with their children following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

A young girl cires following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

A law enforcement agent arrives to the area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

A woman hugs her daughter after being reunited at the Sandy Hook firehouse following a mass shooting at the Sandy Hook Elementary School, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. A gunman entered the school Friday morning and killed at least 26 people, including 20 young children. (AP Photo/The New Haven Register, Melanie Stengel) Photo: Melanie Stengel, AP

Parents walk away from the Sandy Hook Elementary School with their children following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Heavily armed Connecticut State troopers are on scene at the Sandy Hook Elementary School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Heavily armed Connecticut State troopers are on scene at the Sandy Hook Elementary School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

This aerial photo shows a triage area set up at the Sandy Hook fire station in Newtown, Conn., near where authorities say a gunman opened fire inside Sandy Hook Elementary School in a shooting that left 27 people dead, including 18 children, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, AP

A woman holding her children embraces a firefighter after a shooting at the Sandy Hook Elementary School in Newtown, Conn. on Friday, Dec. 14, 2012. (AP Photo/The Journal News, Frank Becerra Jr.) NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT; MANDATORY CREDIT: THE JOURNAL NEWS, FRANK BECERRA JR. Photo: Frank Becerra Jr., AP

Parents walk away from the Sandy Hook Elementary School with their children following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Heavily armed Connecticut State troopers are on the scene at the Sandy Hook School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

A parent walks away from the Sandy Hook Elementary School with her children following a shooting at the school in Newtown, Conn. on Friday, Dec. 14, 2012. (AP Photo/The Journal News, Frank Becerra Jr.) NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT; MANDATORY CREDIT: THE JOURNAL NEWS, FRANK BECERRA JR. Photo: Frank Becerra Jr., ASSOCIATED PRESS

Heavily armed Connecticut State troopers are on the scene at the Sandy Hook School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

School children wait for their parents at the Sandy Hook firehouse following a mass shooting at the Sandy Hook Elementary School in Newtown, Conn. on Friday, Dec. 14, 2012. (AP Photo/The Journal News, Frank Becerra Jr.) NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT; MANDATORY CREDIT: THE JOURNAL NEWS, FRANK BECERRA JR. Photo: Frank Becerra Jr., ASSOCIATED PRESS

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, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

Heavily armed Connecticut State troopers are on the scene at the Sandy Hook School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Parents walk away from the Sandy Hook Elementary School with their children following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

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, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, ASSOCIATED PRESS

Ambulances leave the Sandy Hook Elementary School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., ASSOCIATED PRESS

Parents walk away from the Sandy Hook Elementary School with their children following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Parents walk away from the Sandy Hook Elementary School with their children following a shooting, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Heavily armed Connecticut State troopers are on the scene at the Sandy Hook School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Teachers walk away from the Sandy Hook School following a shooting at the school, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Parents walk away from the Sandy Hook Elementary School with their children following a shooting at the school in Newtown, Conn. on Friday, Dec. 14, 2012. (AP Photo/The Journal News, Frank Becerra Jr.) NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT; MANDATORY CREDIT: THE JOURNAL NEWS, FRANK BECERRA JR. Photo: Frank Becerra Jr., AP

A woman weeps as she arrives to pick up her children at the Sandy Hook Elementary School, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

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, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, ASSOCIATED PRESS

Emergency personnel work the scene outside Sandy Hook Elementary School after a mass shooting Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

A woman hugs her daughter after being reunited at the Sandy Hook firehouse after a mass shooting at the Sandy Hook Elementary School in Newtown, Conn. on Friday, Dec. 14, 2012. (AP Photo/The Journal News, Frank Becerra Jr.) NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT; MANDATORY CREDIT: THE JOURNAL NEWS, FRANK BECERRA JR. Photo: Frank Becerra Jr., AP

A woman weeps as she arrives to pick up her children at the Sandy Hook Elementary School, Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., ASSOCIATED PRESS

School children wait for their parents at the Sandy Hook firehouse following a mass shooting at the Sandy Hook Elementary School Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., ASSOCIATED PRESS

Teachers walk away from the Sandy Hook School following a shooting at the school Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Parents walk away from the Sandy Hook School with their children following a shooting at the school Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, ONLINE OUT, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., ASSOCIATED PRESS

Parents walk away from the Sandy Hook School with their children following a shooting at the school Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, ONLINE OUT, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., ASSOCIATED PRESS

Parents walk away from the Sandy Hook School with their children following a shooting at the school Friday, Dec. 14, 2012 in Newtown, Conn. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, ONLINE OUT, TV OUT, NEWSDAY OUT; MAGS OUT Photo: Frank Becerra Jr., AP

Parents walk away from the Sandy Hook School with their children following a shooting at the school Friday, Dec. 14, 2012. A man opened fire inside the Connecticut elementary school where his mother worked Friday, killing 26 people, including 18 children, and forcing students to cower in classrooms and then flee with the help of teachers and police. (AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, ONLINE OUT, TV OUT, NEWSDAY INTERNET OUT; MAGS OUT Photo: Frank Becerra Jr., AP

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, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, ASSOCIATED PRESS

Law enforcement canvass an area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

Law enforcement canvass an area nearby a school shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

Ambulances leave an area near the scene of a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

Law enforcement canvass the area following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

State Police are on scene following a shooting at the Sandy Hook Elementary School in Newtown, Conn., about 60 miles (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

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, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, ASSOCIATED PRESS

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 (96 kilometers) northeast of New York City, Friday, Dec. 14, 2012. An official with knowledge of Friday's shooting said 27 people were dead, including 18 children. It was the worst school shooting in the country's history. (AP Photo/Jessica Hill) Photo: Jessica Hill, ASSOCIATED PRESS

This satellite image provided by Google shows the Sandy Hook Elementary School in Newtown, Conn. A shooting at the school Friday, Dec. 14, 2012, left the gunman dead and at least one teacher wounded. (AP Photo/Google) Photo: Uncredited, ASSOCIATED PRESS

Police vehicles are lined up near a triage near 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, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) Photo: Julio Cortez, ASSOCIATED PRESS

A law enforcement official carries a weapon as he walks past firefighters and parents with their children after a shooting at the Sandy Hook Elementary School in Newtown, Conn. on Friday, Dec. 14, 2012. (AP Photo/The Journal News, Frank Becerra Jr.) NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT; MANDATORY CREDIT: THE JOURNAL NEWS, FRANK BECERRA JR. Photo: Frank Becerra Jr., AP

President Barack Obama leaves the podium after speaking about the school shooting in Newtown, Conn., Friday, Dec. 14, 2012, in the briefing room of the White House in Washington. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, AP

President Barack Obama wipes his eye as he speaks about the school shooting in Newtown, Conn., at the White House in Washington, Friday, Dec. 14, 2012. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, AP

President Barack Obama pauses as he speaks about the school shooting in Newtown, Conn., Friday, Dec. 14, 2012, in the briefing room of the White House in Washington. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, AP

President Barack Obama wipes his eye as he speaks about the school shooting in Newtown, Conn., Friday, Dec. 14, 2012, in the briefing room of the White House in Washington. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, AP

President Barack Obama wipes his eye as he speaks about the school shooting in Newtown, Conn., Friday, Dec. 14, 2012, in the briefing room of the White House in Washington. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, AP

President Barack Obama pauses as he speaks about the elementary school shooting in Newtown, Conn., Friday, Dec. 14, 2012, in the briefing room of the White House in Washington. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, AP

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 during the daily press briefing at the White House in Washington, Friday, Dec. 14, 2012. (AP Photo/Charles Dharapak) Photo: Charles Dharapak, ASSOCIATED PRESS