This undated photo released by the Pima County Sheriff's Office shows shooting suspect Jared Loughner. (AP Photo/Pima County Sheriff's Dept. via The Arizona Republic)
In this artist rendering, Jared Lee Loughner makes his first court appearance at the Sandra Day O'Connor United States Courthouse in Phoenix, Ariz., Monday, Jan. 10, 2011. (AP Photo/Bill Robles)
A woman prays at the memorial located in front of the University Medical Center, Monday, Jan. 10, 2011, in Tucson, Ariz. (AP Photo/Ross D. Franklin)
Fans pause during a moment of silence for Rep. Gabrielle Giffords, D-Ariz., and other victims of the shooting in Tucson, Ariz., before the BCS National Championship NCAA college football game. (AP Photo/Matt York)
Rabbi Stephanie Aaron, left, comforts Carole Burtch during a healing service at Congregation Chaverim in Tucson, Ariz., Sunday, Jan. 9, 2011. (AP Photo/The Arizona Republic, Jack Kurtz)
President Barack Obama, first lady Michelle Obama, and government employees observe a moment of silence on South Lawn of the White House in Washington, Monday, Jan. 10, 2011. (AP Photo/Susan Walsh)
Well-wishers pay their respects at a makeshift memorial outside U.S. Rep. Gabrielle Giffords' office in Tucson, Ariz. Sunday, Jan. 9, 2011. (AP Photo/The Arizona Republic, Michael Chow)
From left, Ellie Steve, 6, Lucia Reeves, 6, and Zoe Reeves, 18, gather for a candlelight vigil outside the offices U.S. Rep. Gabrielle Giffords, D-Ariz., in Tucson, Ariz., Sunday, Jan. 9, 2011. (AP Photo/Chris Carlson)
From top left, Christina Taylor Green, 9, Dorothy Morris, 76, Arizona Federal District Judge John Roll, 63, from bottom left, Phyllis Schneck, 79, Dorwin Stoddard, 76, and Gabe Zimmerman, 30. (AP Photo)
Emergency personnel attend to a shooting victim outside a shopping center in Tucson, Ariz. on Saturday, Jan. 8, 2011 where U.S. Rep. Gabrielle Giffords, D-Ariz., and others were shot. (AP Photo/James Palka)
People gather outside University Medical Center for a prayer vigil for Rep. Gabrielle Giffords, Saturday, Jan. 8, 2011 in Tucson, Ariz. (AP Photo/The Arizona Republic, David Kadlubowski)
Bethany Woll, left, and Tracy Roberts pay their respects near the offices of U.S. Rep. Gabrielle Giffords, D-Ariz., during a candlelight vigil for Giffords in Tucson, Ariz., Saturday, Jan. 8, 2011. (AP Photo/Chris Carlson)
Nicholas Tomazic, left, and Melanie Cooley, right, gather with others outside the office of U.S. Rep. Gabrielle Giffords, D-Ariz. in Tucson, Ariz. on Saturday Jan. 8, 2011. (AP Photo/The Arizona Republic, Nick Oza)
Candles, flowers and signs are shown outside the offices of U.S. Rep. Gabrielle Giffords, D-Ariz., during a candlelight vigil for Giffords Saturday, Jan. 8, 2011 in Tucson, Ariz. (AP Photo/Matt York)
President Barack Obama takes part in a conference call in the Situation Room of the White House concerning the shooting of Rep. Gabrielle Giffords and others in Tucson, Ariz. (AP Photo/The White House, Pete Souza)
Flowers and candles are seen placed outside the office of Rep. Gabrielle Giffords after Giffords was shot in the head by a gunman who opened fire outside a grocery store, Saturday, Jan. 8, 2011, in Tucson, Ariz. (AP Photo/Chris Morrison)
Two people embrace each other at the scene where Rep. Gabrielle Giffords, D-Ariz., and others were shot outside a Safeway grocery store in Tucson, Ariz. on Saturday, Jan. 8, 2011.(AP Photo/James Palka)
People gather for a candlelight vigil for the victims of the shooting in Arizona at the steps of Capitol Hill in Washington, on Saturday Jan. 8, 2011. (AP Photo/Jose Luis Magana)
Emergency personnel work at the scene where Rep. Gabrielle Giffords, D-Ariz., and others were shot outside a Safeway grocery store in Tucson, Ariz. on Saturday, Jan. 8, 2011. (AP Photo/Matt York)
In this April 3, 2006 file photo, Arizona Federal District Judge John McCarthy Roll appears before the Senate Judiciary Committee on Capitol Hill to discuss immigration litigation reduction. (AP Photo/Dennis Cook, File)
In this photo taken Wednesday, Jan. 5, 2011, Rep. Gabrielle Giffords, D-Ariz., takes part in a reenactment of her swearing-in, on Capitol Hill in Washington. (AP Photo/Susan Walsh)
The flag of the state of Arizona flys at half-mast outside University Medical Center where Congresswoman Gabrielle Giffords was sent after being shot Saturday, Jan. 8, 2011. (AP Photo/Chris Morrison)
Law enforcement officials walk outside the listed address of a Jared L. Loughner Saturday, Jan. 8, 2011 in Tucson, Ariz. (AP Photo/Matt York)
Gia, center, Georgia, left, and John Cobb, of Tucson, embrace outside the office of Congresswoman Gabrielle Giffords after Giffords was shot Saturday, Jan. 8, 2011, at a grocery store in Tucson, Ariz. (AP Photo/Chris Morrison)
This March 2010 photo shows a man identified as Jared L. Loughner at the 2010 Tucson Festival of Books in Tucson, Ariz. (AP Photo/Arizona Daily Star, Mamta Popat)
A lone bunch of flowers lays on the floor near the Capitol Hill office of Rep. Gabrielle Giffords, D-Ariz., Saturday, Jan. 8, 2011, on Capitol Hill in Washington. (AP Photo/Susan Walsh)
People gather at the scene of a shooting involving Rep. Gabrielle Giffords, D-Ariz., on Jan. 8, 2011 in Tucson, Ariz. (AP Photo/Arizona Daily Star, Dean Knuth)
Vera Rapcsak, foreground, and others hold up signs outside the office of U.S. Rep. Gabrielle Giffords, D-Ariz. in Tucson, Ariz. on Saturday, Jan. 8, 2011 after Giffords and others were shot. (AP Photo/Chris Morrison)
President Barack Obama pauses during a statement on the shooting of Rep. Gabrielle Giffords, D-Ariz.,at the White House on Saturday, January 8, 2011, in Washington. (AP Photo/Evan Vucci)
Witnesses and bystanders wait inside the police lines in the parking lot outside a Safeway where there has been a shooting on Saturday, Jan. 8, 2011 in Tucson, Ariz. (AP Photo/Arizona Daily Star, Kelly Presnell)
A firefighter sits in the back of an ambulance at the scene where Rep. Gabrielle Giffords, D-Ariz., and others were shot Saturday, Jan. 8, 2011, at a Safeway grocery store in Tucson, Ariz. (AP Photo/Chris Morrison)
A Pima County Sheriff deputy stands guard at a rear entrance to a grocery store at the scene where Rep. Gabrielle Giffords, D-Ariz., and others were shot in Tucson, Ariz. on Saturday, Jan. 8, 2011. (AP Photo/Matt York)
Law enforcement officials speak at the scene where Rep. Gabrielle Giffords, D-Ariz., was shot in the head when an assailant opened fire outside a grocery store on Saturday, Jan. 8, 2011. (AP Photo/Chris Morrison)
In this Jan. 5, 2011 file photo, House Speaker John Boehner reenacts the swearing in of Rep. Gabrielle Giffords, D-Ariz., on Capitol Hill in Washington. Congressional officials say Giffords has been shot in her district. (AP Photo/Susan …
Police guard the entrance to University Medical Center in Tucson, Ariz. on Saturday, Jan. 8, 2011 where U.S. Rep. Gabrielle Giffords, D-Ariz, was sent after she was shot outside a Safeway grocery store. (AP Photo/Chris Morrison)