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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.
RELATED STORY: New details: Loughner's parents took gun, disabled car to keep him home
Gabrielle Giffords' husband and gun control advocate Mark Kelly talks to Wolf Blitzer about why he purchased an assault weapon.
RELATED STORY: Gabby Giffords' husband buys assault weapon
Former U.S. Rep. Gabrielle Giffords returned to the location where she was shot to support gun control.
RELATED STORY: Gabby Giffords touts gun control
Gabrielle Giffords' husband Mark Kelly tells Wolf Blitzer how his wife prepared for the Senate hearing on guns.
RELATED STORY: Wounded Giffords urges senators to act now against gun violence
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.
CNN's Thelma Gutierrez reports on staff reaction to Rep. Gabrielle Giffords' surprise return to the Capitol.
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