tucsonshooting - 10 JANUARY 2011 - ORO VALLEY, AZ: Renee Lustenberger (CQ) a teacher at Casas Christian School, puts up a card for Christina Green, who was killed in the mass shooting Saturday,  at Mesa Verde Elementary School in Oro Valley. Christina Green was a student at Mesa Verde.  ARIZONA REPUBLIC PHOTO BY JACK KURTZ..Gabrielle Giffords shooting
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