The disappearance of a disease researcher at the U.S. Centers for Disease Control has spurred many theories. Dr. Timothy Cunningham left his keys, car and wallet behind in his Atlanta home. Nancy Grace explores the case with medical examiner Dr. William Morrone, forensics expert George Schiro, and WSB Radio reporter Robyn Walensky. Grace also looks at the latest troubles for actress Heather Locklear. who faces a felony domestic violence charge in the wake of a fight with her boyfriend. Los Angeles defense lawyer Troy Slaten, New York psychologist Caryn Stark, forensics expert Joseph Scott Morgan, and RadarOnline.com reporter Alexis Tereszcuk join the discussion.