Article Photos: Oklahoma City mayor says 12,000 to 13,000 homes damaged or destroyed by May 20 tornado 86/564

Moore Superintendent Susan Pierce gets a hug from Kingsgate Elementary teacher Jessica Parker after a district staff meeting Wednesday afternoon at Southern Hills Baptist Church. Pierce is retiring and will spend her last weeks at work helping the district begin the rebuilding process after a tornado killed seven students. <strong>NATE BILLINGS - THE OKLAHOMAN</strong>