difficulties in dealing with human intelligence when you are relying on human informants but now it towns out thisçó source r this intelligence has been charged with lying to the f.b.i@ >>shepard: thankñi pentagon, jennifer. another day ofñi emotional testimony at ft. hood. army psychiatrist nadal hassan accused killing 13 people in a rampage a year ago. witnesses coming face-to-face with him in court as they describe the terrifying scene that day. the veteran sketch artist is has been watching it all go down inside the courtroom and joins us now from ft.çó hood. it is my understanding that he has been putting on sort of a menacing stare down. tell me about the atmosphere in there. >>guest: the atmosphereñiçr]çós very stoic and he at times is not there. but he studies the witnesses. (inaudible)