Article Photos: U.S. school safety stats 28/47

Heavily armed Connecticut State troopers are on the scene at Sandy Hook Elementary School in Newtown, Conn. where authorities say a gunman opened fire, leaving 27 people dead, including 20 children, Friday, Dec. 14, 2012.(AP Photo/The Journal News, Frank Becerra Jr.) MANDATORY CREDIT, NYC OUT, NO SALES, TV OUT, NEWSDAY OUT; MAGS OUT ORG XMIT: NYWHI110