Article Photos: Preparation for mass shooting events responsibility of police and public, Oklahoma officials say 39/47

Police vehicles are lined up near a triage near Sandy Hook Elementary School in Newtown, Conn., where authorities say a gunman opened fire inside an elementary school in a shooting that left 27 people dead, including 18 children, Friday, Dec. 14, 2012. (AP Photo/Julio Cortez) ORG XMIT: CTJC109