Natalee Holloway's parents wait as a forensics expert performs tests on what may be their daughter's bones. Investigative reporter Art Harris, medical examiner Dr. William Morrone and Nancy Grace discuss the process of confirming if the missing Alabama woman has been found in an Aruba grave. Reporter Drew Nelson joins Grace and Morrone to talk about a mom who allegedly was high on heroin while her child choked on a car seat belt. Grace also details the search for a Texas woman who went missing just before Hurricane Harvey hit Houston.