Rep. Gabrielle Giffords leads the crowd in the pledge of allegiance during a vigil on Sunday, January 8, 2012, in Tucson, Arizona, marking one year since a shooting rampage left her and 12 others wounded and six people dead. Getty Images
Safeway employee Sherrie Brown is comforted by Leroy Wood while participating in a ringing of the bells ceremony earlier Sunday. Several events were held to mark the one-year anniversary of the shooting at the La Toscana Village Safeway. Getty Images
Rebecca Kraft, 4, places flowers at a memorial site in the Safeway parking lot on Sunday. Getty Images
A commemorative plaque marks the site of the shooting at the La Toscana Village Safeway. Getty Images
A group of local children light candles at the Safeway memorial site. Getty Images
A memorial along the highway in Tucson commemorates each of the six people who lost their lives. Getty Images
Arizona Gov. Jan Brewer, right, attends an interfaith memorial service at St. Augustine Cathedral in Tucson on Sunday. Getty Images
Members of the Tucson Dance Academy perform at St. Augustine Cathedral on Sunday. Getty Images
During Sunday's memorial service, Teresa Bier makes a flower offering in honor of Christina Taylor-Green, a 9-year-old who was killed. Getty Images
Ron Barber, who was wounded in last year's shooting, exits after attending an Sunday's interfaith service. Getty Images
Gabrielle Giffords and her husband, Mark Kelly, stand at the Gabe Zimmerman Trailhead memorial site on Saturday, January 7. Zimmerman, one of the congresswoman's aids, was killed in the shooting. CAPTAIN MARK KELLY