More details come out about the Tucson shooter Jared Loughner’s insanity. I was struck with this paragraph in a description of his delusions (none of which were apparently related to politics, despite what is still being said):
Slowly but steadily, his intelligence warped into a distorted, disconnected series of obsessions. He developed an illogical fascination with logic. Math, grammar, logic – the systems civilization has developed to make sense of the world became the means through which he expressed the confusion and pain in his increasingly lost mind.