Connecticut State Police responded to reports of a shooting at a Newtown elementary school Friday, Dec. 14, 2012, in southwestern Connecticut (Photo from: CNN)

Connecticut State Police responded to reports of a shooting at a Newtown elementary school Friday, Dec. 14, 2012, in southwestern Connecticut (Photo from: CNN)

Connecticut State Police responded to reports of a shooting at a Newtown elementary school Friday, Dec. 14, 2012, in southwestern Connecticut (Photo from: CNN)

Connecticut State Police responded to reports of a shooting at a Newtown elementary school Friday, Dec. 14, 2012, in southwestern Connecticut (Photo from: CNN)

Connecticut State Police responded to reports of a shooting at a Newtown elementary school Friday, Dec. 14, 2012, in southwestern Connecticut (Photo from: CNN)

The aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012.(CBS)

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)

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)

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. (AP Photo/Jessica Hill)

Screen shot of live footage from the aftermath of a shooting at Sandy Hook Elementary School in Newtown, Conn., on Dec. 14, 2012. (WFSB)

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)

(CBS/AP)-- A funeral for one of the Connecticut school shooting victims, 6-year-old Noah Pozner, is being planned for Monday.

Pozner's uncle, Alexis Haller, says the funeral is scheduled for 1 p.m. at the Abraham L. Green & Son Funeral Home in Fairfield, Conn.

Haller describes Noah as "smart as a whip," gentle but with a rambunctious streak.

Noah had a twin sister, Arielle, who was assigned to a different classroom and survived Friday's rampage in which 20 children were killed. Noah had called Arielle his best friend, and with their 8-year-old sister, Sophia, they were inseparable.

A relative said the family moved to Newtown because they didn't feel New York schools were safe enough.

"The reason they moved to that area is because they did not consider any school in New York state on the same level. That's one of the reasons they moved, for safety and education," said Noah's uncle Arthur Pozner, of New York City's Brooklyn borough.

Noah's uncle recalled him as "extremely mature."

"When I was his age, I was not like him," Pozner told Newsday. "Very well brought up. Extremely bright. Extremely bright."