A horrible tragedy occurred Saturday at a grocery store in Tucson, Arizona.
Congresswoman Gabrielle Giffords was holding a meet-and-greet when a gunman opened fire, gravely injuring her with a shot to her head. The man kept firing, killing six and wounding 11 others.
Among those who died was a 9-year-old girl, a student council member at her school, who was brought to the event by a neighbor.
Gabrielle Giffords was a Democrat. She narrowly won re-election to her seat in Congress in the November election.