Photo Details

Photo detail

February 17, 2013

This undated photo shows Adam Lanza posing for a group photo of the technology club that appeared in the Newtown High School yearbook. Authorities have identified Lanza as the gunman who killed his mother at their home and then opened fire Dec. 14 inside an elementary school in Newtown, Conn., killing 26 people, including 20 children, before killing himself.