With the trial of Bo Dukes, the man accused of helping Ryan Duke burn Tara Grinstead's body to cover up her murder in 2005, come new revelations in the case. One witness says he called police in 2008 to tell them Bo had shared details with him, but cops weren't interested in talking to him. Nancy Grace updates the latest in the trial with private investigator Vincent Hill and then she talks to Tara's close friend Maria Woods Harber. They are joined by Cold Case Research Institute director Sheryl McCollum and Los Angeles psycho analyst Dr. Bethany Marshall.