tucsonshooting - 09 JANUARY 2011 - TUCSON, AZ: Pati Castellanos (CQ) and her son, Julian Castellanos (CQ), 3, light candles at a memorial for Gabrielle Giffords at University Medical Center in Tucson Sunday night. Congresswoman Gabrielle Giffords, US Federal Judge John Roll and several other people were shot by a lone gunman in a mass shooting Saturday.     ARIZONA REPUBLIC PHOTO BY JACK KURTZ