Mackenzie Lueck's remains are found in a burn pit behind a home near the park where she disappears. The man who lives there denies knowing the college student. Nancy Grace and her panel of experts look at how complaints of a foul odor by neighbors and cell phone data lead to the discovery. On the panel today: telecommunications expert Ben Levitan, Forensics Professor Joseph Scott Morgan, Psychologist Caryn Stark, Prosecutor Wendy Patrick, Search and Rescue expert Toney Wade, and reporter Dave Mack.