Rest easy Bill O'Reilly, Threat Level is now reporting that the FBI has indeed narrowed the focus of it search for the Sarah Palin email hacker to Tennessee college student David Kernell, also the son of Democratic Tennessee state representative Mike Kernell. Per Threat Level:

According to a witness, several agents arrived at Kernell's Knoxville apartment in The Commons student housing complex shortly after midnight on Sunday morning while a party was in progress. Kernell and some of his friends reportedly fled when agents arrived, though the local TV station that reported the raid is a bit unclear about this detail. FBI agents asked partygoers who did not live in the apartment to wait outside while they photographed the residence.