Jared Lee Loughner opened fire at a public meeting held by U.S. representative Gabby Giffords in Tucson, Arizona, killing six people and injuring twelve others.

Jared Lee Loughner is an American mass murderer who pleaded guilty to 19 charges of murder and attempted murder in connection with the January 8, 2011, Tucson shooting, in which he shot and severely injured U.S. Representative Gabby Giffords, and killed six people, including Chief U.S. District Court Judge John Roll. Loughner shot and injured a total of 13 people, including one man who was injured while subduing him.

On January 8, 2011, United States Representative Gabby Giffords and 18 others were shot during a constituent meeting held in a supermarket parking lot in Casas Adobes, Arizona, in the Tucson metropolitan area. Six people were killed, including federal District Court Chief Judge John Roll; Gabe Zimmerman, one of Giffords's staffers; and a nine-year-old girl, Christina-Taylor Green. Giffords was holding a meeting called "Congress on Your Corner" in the parking lot of a Safeway store when Jared Lee Loughner drew a pistol and shot her through the head at point-blank range before proceeding to fire on others. One additional person was injured in the immediate aftermath of the shooting. News reports identified the target of the attack to be Giffords, a Democrat representing Arizona's 8th congressional district. Giffords's medical condition was initially described as "critical".

Gabrielle Dee Giffords is an American retired politician and gun violence prevention advocate. She served as a member of the United States House of Representatives representing Arizona's 8th congressional district from January 2007 until January 2012, when she resigned due to a severe brain injury suffered during an assassination attempt. A member of the Democratic Party, she was the third woman in Arizona's history to be elected to the U.S. Congress.

Tucson is a city in Pima County, Arizona, United States, and its county seat. It is the second-most populous city in Arizona with a population of 542,630 at the 2020 census, while the Tucson metropolitan statistical area has an estimated 1.08 million residents and is the 52nd-largest metropolitan area in the U.S. Tucson and Phoenix anchor the Arizona Sun Corridor. The city is 108 miles (174 km) southeast of Phoenix and 60 mi (100 km) north of the United States–Mexico border. It is home to the University of Arizona.