A University of Tennessee student charged with hacking into the personal e-mail account of Sarah Palin, the Alaska governor and former Republican vice presidential nominee, pleaded not guilty Monday to three more charges in the case. A magistrate agreed to push back the trial of David Kernell, the son of a Democratic Tennessee legislator, from May to October. Kernell allegedly gained access to Palin’s account in September by correctly answering a series of personal security questions.
