James Holmes, the man accused in the Colorado theater massacre, sent a letter to one of his professors days before the shooting. In it, sources tell CBS News, he talked about shooting people and even included drawings of a gunman and his victims, reports John Miller.
Source: Holmes letter warned of shooting
Posted: 12:00 PM, Jul 26, 2012
Updated: 2012-07-26 12:00:15-04
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