
TRIBUTE: A makeshift memorial outside the University Medical Center in Tucson, Ariz., honors the victims of Saturday's shooting rampage in that city during a speech by Democratic U.S. Rep. Gabrielle Giffords (upper right), who was shot through the head but is expected to survive. U.S. District Judge John M. Roll (upper left) and five others, including a 9-year-old girl, were killed by a gunman. (Associated Press)

** FILE ** U.S. District Judge John M. Roll appears before the Senate Judiciary Committee on Capitol Hill in April 2006 to discuss immigration litigation reduction. (AP Photo/Dennis Cook, File)