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Police files show Loughner's parents were so concerned about his behavior, they took his shotgun and disabled his car. CNN's Brian Todd reports.
Gabrielle Giffords' husband Mark Kelly tells Wolf Blitzer how his wife prepared for the Senate hearing on guns.
Former Rep. Gabrielle Giffords takes center stage at heated Hill gun control hearing. Dana Bash reports.
RELATED STORY: Mark Kelly to CNN: He and Giffords used NRA practice range
Former Rep. Gabrielle Giffords and her husband, Mark Kelly, launch a political action committee to prevent gun violence. CNN’s Lisa Sylvester reports.