KNOXVILLE, Tenn. (WVLT) -- The trial is underway for a Knox County man charged along with his pregnant teenage girlfriend in the shooting deaths of her father and stepmother.

Lawyers are still picking the jury that will decide the fate of 22-year-old Andrew Mann, who's charged with first degree murder in the June 2007 deaths of Terrance and Alisa McGhee.

Prosecutors have also charged 17-year-old Amanda McGhee with the same crimes. She'll be tried as an adult in January.

The day began with Christopher Kirkland pleading guilty to two counts of accessory after the fact. Prosecutors say he helped dispose of evidence after the murders. Kirkland has agreed to testify against Mann this week.