psychiatrist versus his psychiatrist. >> john w. hinckley jr. has been found not guilty by reason of insanity on all 13 counts. >> i was surprised at the verdict. >> i think almost everyone was surprised by this verdict. >> i would characterize it as astonishment. >> i think the reason it went in that direction is that the prosecution basically denied mental illness. >> this was a case in which there was much evidence in hinckley's own hand, in his writings, in his poetry, in his essays, to suggest that he was, in fact, degenerating into a psychotic killer by the time march of 1981 rolled around.