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	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

On August 28, 1843, Richard Dadd (1817-1886), one of the most promising young artists of his generation, lured his father, Robert Dadd, into a park in Cobham, Kent, England. Believing that he was attacking the devil disguised as "the person he had always regarded as a parent",^1(p24) he attempted to cut his father's throat with a razor and, failing that, stabbed him to death. He escaped to France, where he was arrested near Montereau (southeast of Paris) after attempting to cut the throat of a fellow carriage passenger; he had made his decision to attack based on his perceptions of movements of the star Osiris (probably Sirius).^2(p60) After being taken into custody, he confessed his crime and was eventually admitted to the Clermont Asylum, near Beauvais. A list of those who must die was recovered from him. In London, England, sketches of his friends with a red line drawn across . . . [Full Text of this Article]

James C. Harris, MD