Twenty-six U.S. Border Patrol agents have died in the line of duty since 2002.
The last officer to die in the line of duty was Agent James Dominguez, who in July was struck by a car while he was helping another motorist about 100 miles west of San Antonio.
Four agents have been fatally shot since January 2008:
— Nicholas Ivie, 30, was fatally shot Tuesday just outside of Bisbee, Ariz., when he and other agents were responding to an electronic sensor that was triggered near the border.
— Brian Terry, 40, died in a shootout with Mexican bandits near Arizona's border with Mexico in December 2010. Two weapons thought to have been acquired by illicit buyers in the U.S. government's bungled "Fast and Furious" gun-smuggling operation were recovered at the scene.
— Robert Rosas, 30, was shot eight times while on solo patrol in a rugged, remote mountainous area east of San Diego in July 2009. He was lured from his car in a robbery attempt and shot from behind.
— Luis Aguilar, 32, was struck and killed with a drug-laden Hummer in California's Imperial Sand Dunes during January 2008 as he laid spike strips in an attempt to puncture the vehicle's tires. Jesus Navarro was extradited from Mexico and sentenced to life in prison last year.