martha: the university police department confirmed to you, the newspaper there, that there is indeed a second man gun? all right. what are you seeing in terms of a search for the second gunman and what is the lock down situation there? how active is it? is there a sense they are near the person or able... they have him in sight? >> caller: well, i've heard now the second gunman is barricaded by one of the campus buildings and they have the building surrounded. martha: what building. >> caller: calvin. martha: you a are hearing a second gunman is barricaded into calhoun, what kind of building is that. >> caller: academic building. martha: what classes are there and we're looking may want of the perry castaneda library and where is it in relation to that. >> caller: look more west of that, there should be -- like a lawn leading up to the tower, and. martha: we see that on the left. >> caller: the abbreviation is