When a Florida man called 911 saying he found his wife dead in a bathtub he was crying hysterically -- but were his screams fake? Nancy Grace digs into the murder case against David Tronnes, a wealthy businessman who is charged with killing his wife, Shanti Cooper-Tronnes, in their upscale Orlando home. Nancy's experts include South Carolina medical examiner Dr. Michelle DuPre, Atlanta prosecutor Kenya Johnson, Atlanta criminal defense lawyer Eric Johnson,  New York psychologist Caryn Stark, forensics expert Joseph Scott Morgan, and Crime Stories reporter Robyn Walensky.