Officials say soldiers were chasing drug criminals who had fired on an army patrol . When she could n't reach him , she traveled to Monterrey , where she identified her son 's body , said the campus rector , Rafael Rangel Sostman . They said some criminals had fled to Technological Institute of Higher Learning of Monterrey . Score: 6 Interior Ministry apologizes for deaths , pledges more intense investigation .
Officials say soldiers were chasing drug criminals who had fired on an army patrol . They said some criminals had fled to Technological Institute of Higher Learning of Monterrey . Score: 6 Interior Ministry apologizes for deaths , pledges more intense investigation .