Simplify the following text for a Grade 10 native English-speaking person.
Original: On January 8 , 2011 , Giffords was a victim of a shooting near Tucson , which was reported to be an assassination attempt on her , at a Safeway supermarket where she was meeting publicly with constituents . Giffords was critically injured by a gunshot wound to the head ; six people were killed , and another thirteen people were injured in the shooting .
Simplified: She was critically injured January 8 , 2011 , during a shooting in Tucson , Arizona , though she survived the shooting .