Jackson Browne, left, and Dar Williams perform at a concert benefiting the Community Foundation for Southern Arizona's Fund for Civility, Respect and Understanding at the Tucson Convention Center in ... more 
Jackson Browne, left, and Dar Williams perform at a concert benefiting the Community Foundation for Southern Arizona's Fund for Civility, Respect and Understanding at the Tucson Convention Center in Tucson, Ariz. Thursday, March 10, 2011. The fund was established by the family of Ron Barber, the District Director for U. S. Rep. Gabrielle Giffords, who was shot and injured during the Jan. 8 shootings that killed six people and wounded 13. less 
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Associated Press | Photo By The Arizona Republic, Rob Schumacher
Fri, Mar 11, 2011 3:12 PM EST