Teen girl goes on high school trip, never seen alive again. Mom and Dad devastated. Natalee Holloway, NEW developments

It's been nearly 15 years since Natalee Holloway disappeared while on a trip with classmates to Aruba. Although the case remains unsolved, her family has never given up. Can new developments lead to her whereabouts? Joining Nancy Grace to discuss:Rahul D. Manchanda, Esq: International Law Expert, author of "Deep State Defector I, II & III"Steven Lampley: Former Detective & author of “Outside Your Door” Dr. Bethany Marshall: Psychoanalyst, Beverly HillsKaren Smith: Forensics Expert, Bare Bones Consulting Anne Emerson: WCIV ABC 4 Charleston reporter