Gabrielle Giffords, Arizona congresswoman, shot in Tucson

Democrat Gabrielle Giffords is in critical condition after a gunman opened fire at a meet-and-greet at a supermarket. Six are dead, including a 9-year-old girl and a federal judge, and at least 12 others are injured.
Meanwhile, a federal source said a suspect was in custody and identified him as Jared L. Loughner, 22, a U.S. military veteran who served in Afghanistan. The gunman reportedly fired a pistol with an "extended magazine," the source said.
This is a horrible tragedy.