A federal jury has begun deliberating for a second day in the trial of a former Tennessee college student accused of hacking Sarah Palin's e-mail account when she was a vice presidential candidate.

The panel worked in Knoxville for six hours Tuesday, then asked District Court Judge Thomas Phillips for a definition of "access to the computer." He told jurors that's their decision.

The defense claims 22-year-old David Kernell had no criminal intent in gaining access to Palin's e-mail account while prosecutors say he was trying to derail her 2008 campaign.

Kernell is charged with identity theft, wire fraud, unauthorized access to a computer and obstruction of justice. If convicted on all charges, he faces a maximum possible prison sentence of 50 years.