classes. >> shay shot me as soon as they came in. tried to run. i was shot in my shoulder. the people who came had no sense of humanity in them. . >> reporter: so many children afraid under the benches. a brigadier was giving a lesson in first aid. the dummy, the apparatus left where he fell. and this is when things get really bad. the army says that the children fled for the door over here and the door here. a hundred of them were gunned down as they were trying to esca escape, cold-blooded murder. everywhere you walk here, blood splatters all over the ground. the taliban not satisfied with their killing downstairs come up here to the computer lab. and one look inside this room and you can see immediately what's happened.