A Pima County Sheriff's spokesman said the suspect was 22 years old and had one prior minor run-in with the law as an adult. The spokesman said they are investigating whether someone else was involved. Ms. Giffords' colleagues condemned the attack, with new House Speaker John A. Boehner saying "an attack on one who serves is an attack on all who serve." "Acts and threats of violence against public officials have no place in our society," Mr. Boehner said in a statement Saturday afternoon. "Our prayers are with Congresswoman Giffords, her staff, all who were injured, and their families. This...