Sandy Hook Elementary victim: Noah Pozner, 6

Noah was "smart as a whip," gentle but with a rambunctious streak, said his uncle, Alexis Haller of Woodinville, Wash. Noah's twin sister Arielle, assigned to a different classroom, survived the shooting. He called her his best friend, and with their 8-year-old sister, Sophia, they were inseparable.

"They were always playing together, they loved to do things together," Haller said. When his mother, a nurse, would tell him she loved him, he would answer, "Not as much as I love you, Mom."

Haller said Noah loved to read and liked to figure out how things worked mechanically. For his birthday two weeks ago, he got a new Wii.

"He was just a really lively, smart kid," Haller said. "He would have become a great man, I think. He would have grown up to be a great dad."