Mark Kelly, Rep. Gabrielle Giffords husband, holds her hand in Arizona

This January 9, 2011 photo released by Congressworman Gabrielle Giffords' office shows Mark Kelly, Giffords' husband, holding Rep. Gabrielle Giffords (D-AZ) hand in her hospital room at the University Medical Center in Tucson, Arizona. Giffords remains in critical condition after being shot in the head after a gunman opened fire during a political event in Tucson on Saturday. UPI/Rep. Gabrielle Giffords Office/Handout