TUCSON - The lifeguards at the Northwest YMCA called U.S. District Judge John M. Roll "Mr. Smiley" because he was so cheerful as he passed by them early each morning before his daily lap swim.
The dance instructors and child-care attendants marveled at the energy and grace of Christina Green, whom they described as a delightful combination of tomboy and girly-girl who one moment would show off her scraped knees from climbing a tree and the next sit quietly and braid her friend's hair.
The building's administrators had a steadfast ally in Rep. Gabrielle Giffords (D-Ariz.), who had served on their executive board and had pushed for state child-care funding that allowed many of the Y's members to continue to afford its programs.
And many of the people who worked at the YMCA knew a disturbed young man named Jared Loughner, whose erratic behavior included strange outbursts in the cardio room, where he attended a fitness class through Pima Community College.
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