FBI Director Robert S. Mueller III speaks at the Pima County Sheriff’s Office in Tucson, Ariz. Mueller was on hand to oversee the investigation of the shooting of U.S. Rep. Gabrielle Giffords, D-Ariz., who was shot in the head during a speech at a local supermarket.

First published in the January 09, 2011, 11:55 p.m. edition

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