When the gunfire rang out, 27-year-old Victoria Soto scrambled to move her students away from her first-grade classroom door and shielded them in the corner of the room.
It's not surprising that Soto would risk her life to save others, her mother said.
Six-year-old Emilie Parker was a budding artist who would have been the first to console the victims had she not been killed, her father said.
"She loved to use her talents to touch the lives of everyone that she came in contact with," Robbie Parker said. "She always carried around her markers and pencils so she never missed an opportunity to draw a picture or make a card for those around her."
Emilie's father also offered his condolences to all the families affected.
"This includes the family of the shooter," he said. "I can't imagine how hard this experience must be for you, and I want you to know that our family, and our love and support goes out to you as well."
Jack was an avid sports fan, and one of his idols, New York Giants receiver Victor Cruz, ran across an NFL football field with "Jack Pinto My Hero" written on his shoe on Sunday.
Noah loved playing with his siblings, especially his twin sister. They still don't know how their brother died, Noah's aunt said.
"How do you tell them that's how their brother died?" Victoria Haller asked. "It's the unthinkable, really."
CNN's Kyung Lah, David Ariosto, Susan Candiotti, Wayne Drash and Eric Marrapodi contributed to this report from Newtown, Connecticut. CNN's Carol Cratty, David Williams, Dana Ford, Greg Botelho, David Ariosto, Candy Crowley and Chuck Johnston also contributed to this report.
™ & © 2012 Cable News Network, Inc., a Time Warner Company. All rights reserved.