Lieutenant Colonel Domingo Monterrosa speaks with a wounded guerrilla from the Ejército Revolucionario del Pueblo, ERP, captured during a military operation by the rapid reaction military unit the Atlacatl Battalion in San Miguel department, El Salvador, August 23, 1983. The United Nations Truth Commission for El Salvador named the Atlacatl Battalion under Monterrosa's command as responsible for the massacre of nearly 1,000 civilians in 1981 in El Mozote, Morazán department, considered the worst massacre in modern Latin American history.