A Mexican teenager pleaded guilty Friday to fatally shooting a U.S. Border Patrol agent last summer while attempting to rob him of government property in a remote area east of San Diego.
Christian Daniel Castro-Alvarez, 17, and an unspecified number of co-conspirators crossed the U.S.-Mexico border and lured Agent Robert W. Rosas Jr. out of his vehicle while he was on routine patrol, according to the plea agreement filed in federal court in San Diego.