Six relatives of Mexican marine killed , President Felipe Calderon says . Arturo Beltran Leyva was killed in shootout with drug cartel last week 's . Angulo Cordova 's brother was injured in the shooting , the agency said . Drug lord Marine also was killed in last week 's incident .
Six relatives of Mexican marine killed , President Felipe Calderon says . Arturo Beltran Leyva was killed in shootout with drug cartel last week 's . Drug lord Marine also was killed in last week 's incident .