Easton police officer J. Sollazzo waves to returning children as their bus pulls into Hawley School, Tuesday, Dec. 18, 2012, in Newtown, Conn. Classes resume Tuesday for Newtown schools except those at Sandy Hook. Buses ferrying students to schools were festooned with large green and white ribbons on the front grills, the colors of Sandy Hook. At Newtown High School, students in sweatshirts and jackets, many wearing headphones, betrayed mixed emotions. Adam Lanza walked into Sandy Hook Elementary School in Newtown, Friday and opened fire, killing 26 people, including 20 children, before killing himself.(AP Photo/Jason DeCrow)

Tom Doyle, back left, standing with family and co-workers, wipes his face as the funeral procession for James Mattioli, 6, who died in the Sandy Hook Elementary School shootings, approaches the St. John's Cemetery Tuesday, Dec. 18, 2012, in Darien, Conn. Center are his wife Debbie and daughter Emily, 10. Adam Lanza opened fire Sandy Hook Elementary School in Newtown on Friday, killing 26 people, including 20 children. (AP Photo/Craig Ruttle)

An American flag flies at half-staff as dawn breaks, Saturday, Dec. 15, 2012 in Newtown, Conn. A gunman walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Jason DeCrow)

A young girl waves as her school bus pulls into Hawley School, Tuesday, Dec. 18, 2012, in Newtown, Conn. Classes resume Tuesday for Newtown schools except those at Sandy Hook. Buses ferrying students to schools were festooned with large green and white ribbons on the front grills, the colors of Sandy Hook. At Newtown High School, students in sweatshirts and jackets, many wearing headphones, betrayed mixed emotions. Adam Lanza walked into Sandy Hook Elementary School in Newtown, Friday and opened fire, killing 26 people, including 20 children, before killing himself.(AP Photo/Jason DeCrow)

Veronique Pozner, right, arrives at a funeral service for her son, 6-year-old Noah Pozner, Monday, Dec. 17, 2012, in Fairfield, Conn. Noah Pozner was killed when Adam Lanza walked into Sandy Hook Elementary School in Newtown Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Jason DeCrow)

Easton police officer J. Sollazzo clasps hands with a young student returning to Hawley School, Tuesday, Dec. 18, 2012, in Newtown, Conn. Classes resume Tuesday for Newtown schools except those at Sandy Hook. Buses ferrying students to schools were festooned with large green and white ribbons on the front grills, the colors of Sandy Hook. At Newtown High School, students in sweatshirts and jackets, many wearing headphones, betrayed mixed emotions. Adam Lanza walked into Sandy Hook Elementary School in Newtown, Friday and opened fire, killing 26 people, including 20 children, before killing himself.(AP Photo/Jason DeCrow)

Mourners embrace outside of St. Rose of Lima Roman Catholic Church during funeral services for James Mattioli, Tuesday, Dec. 18, 2012, in Newtown, Conn. Mattioli, 6, was killed when Adam Lanza walked into Sandy Hook Elementary School in Newtown, Conn., Dec. 14, and opened fire, killing 26 people, including 20 children, before killing himself. (AP Photo/Julio Cortez)

Pallbearers carry the casket containing the body of James Mattioli into St. Rose of Lima Roman Catholic Church for funeral services, Tuesday, Dec. 18, 2012, in Newtown, Conn. Mattioli, 6, was killed when Adam Lanza walked into Sandy Hook Elementary School in Newtown, Conn., Dec. 14, and opened fire, killing 26 people, including 20 children, before killing himself.(AP Photo/Julio Cortez)

Family and friends react after attending the wake of school shooting victim Victoria Soto, a teacher at Sandy Hook Elementary School, in Stratford, Conn., Tuesday, Dec. 18, 2012. Soto, 27, was killed when Adam Lanza walked into Sandy Hook Elementary School in Newtown, Conn., Dec. 14, and opened fire, killing 26 people, including 20 children, before killing himself. (AP Photo/Charles Krupa)

A woman reacts as a hearse begins to pull out outside of St. Rose of Lima Roman Catholic Church after funeral services for Jessica Rekos, Tuesday, Dec. 18, 2012, in Newtown, Conn. Rekos, 6, was killed when Adam Lanza walked into Sandy Hook Elementary School in Newtown, Dec. 14, and opened fire, killing 26 people, including 20 children, before killing himself. (AP Photo/Julio Cortez)