You fancy me mad. Madmen know nothing. But you should have seen me. You should have seen how wisely I proceeded with what caution with what foresight with what dissimulation I went to work . . . Oh, you would have laughed to see how cunningly I thrust it in!
The Tell-Tale Heart
Fictional characters like Poe's stealthy stabber have given many a whodunit fan the notion that an insane murderer is "fiendishly clever" in planning and executing his crimes. Poppycock, say two psychiatric authorities in a recent issue of the Journal of Criminal Law and Criminology.
Dr. Louis Cohen, who...