The Photos That Mattered in 2012

A look back at the images that defined an unforgettable year.

DECEMBER 26, 2012

First-grader Henry Terifay and his sister, fourth-grader Kelly Terifay, wait in shock outside Sandy Hook Elementary School after Adam Lanza opened fire at the school in Newtown, Conn. on Dec. 14, fatally shooting 20 children and six adults before killing himself.

Michelle McLoughlin/Reuters