Article Photos: Oklahoma City-area school districts say security is beefed up 81/197

Residents pray during an interfaith vigil for the victims of the Sandy Hook Elementary School shooting on Sunday, Dec. 16, 2012, at Newtown High School in Newtown, Conn. A gunman walked into the elementary school Friday and opened fire, killing 26 people, including 20 children. (AP Photo/ Evan Vucci) ORG XMIT: CTEV133