Gabrielle Giffords

Associated Press
Former Rep. Gabrielle Giffords, center, is joined by her husband Mark Kelly, left, and Emily Nottingham, mother of shooting victim Gabe Zimmerman, listening to a speaker as they returned to the site of a shooting that left her critically wounded to urge key senators to support expanded background checks for gun purchases, Wednesday, March 6, 2013, in Tucson, Ariz. (AP Photo/Ross D. Franklin)

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Authorities released hundreds of pages of documents on March 27 that provide new insight into how the 2011 Arizona shooting occurred and the motivations behind gunman Jared Loughner. Six people were killed in the attack and several people, including then-Rep. Gabrielle Giffords were seriously injured. (AP)

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