Former U.S. Rep. Gabrielle Giffords hugs Maureen Roll, (back turned) the wife of the late U.S. Federal Judge John Roll as U.S. Rep. Ron Barber looks on before a dedication ceremony of the John M. Roll U.S. Courthouse in Yuma, at the Pivot Point Conference Center, across the street from the courthouse, on Thursday, April 24, 2014. (AP Photo/The Republic, David Wallace)

David Wallace