AP Interactive: Connecticut School Shooting - Article Photos 129/196

A U.S. flag, second from left, flies at half-staff honoring the victims that died a day earlier when a gunman opened fire at an elementary school, Saturday, Dec. 15, 2012, in Newtown, Conn. The massacre of 26 children and adults at Sandy Hook Elementary school elicited horror and soul-searching around the world even as it raised more basic questions about why the gunman, 20-year-old Adam Lanza, would have been driven to such a crime and how he chose his victims. (AP Photo/Julio Cortez) ORG XMIT: CTJC130