Article Photos: School adviser: Gunman a loner who felt no pain 3/5

Suada Likovic, 24, from left, Chelsea Crain, 23, Kristin Hoyt, 18, Jeffrey Hoyt, 16, and Linda Hoyt, all of Danbury, Conn., tie balloons to an overpass up the road from the Sandy Hook 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/David Goldman)