[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/04/09/art.palin.nrlc.jpg caption="Federal jurors deliberating the case surrounding the 2008 email hacking of then-Vice Presidential Candidate Sarah Palin remain deadlocked on one issue."](CNN) - Federal jurors deliberating the case surrounding the 2008 email hacking of then-Vice Presidential Candidate Sarah Palin remain deadlocked on one of the four issues they have been tasked to consider, according to the Knoxville News Sentinel.
Jurors are deliberating in their fourth day over the issue of identity theft in the case of a 22-year old man accused of hacking Palin's e-mail account while he was a student in college.
Though remaining divided that issue, jurors did inform the judge Thursday they reached a unanimous verdict on three other charges - wire fraud, intentionally accessing Palin's e-mail account without authorization, and obstructing an FBI investigation.
David Kernell, 22, the son of a Tennessee state representative pled not guilty to all the counts. Kernell's defense rested Monday in the Knoxville trial. He did not take the stand and the defense called one witness, an FBI agent who said Kernell had been emotionally upset, according to CNN affiliate WATE-TV.
In closing arguments Monday, prosecutors told jurors that Kernell, who was a student at the University of Tennessee, was persistent in gaining access to Palin's account, and once he did it, chose not to back down.
Palin herself took the stand last Friday, testifying she did not realize anyone had hacked her Yahoo e-mail account until the news media reported it. She also told the jury her life and campaign were disrupted when the hacked e-mails were published, and it took several days for her to deal with media questions after personal photos and contacts were posted on the internet, according to the report.
Kernell's father, state Rep. Mike Kernell, is a Democrat who has served in the Tennessee House of Representatives for more than three decades. He is not involved in the case.