A new search is underway for Madeleine McCann, a British toddler who became one of the most famous unsolved missing person cases in the world when she disappeared from a Portugal resort in 2007. Former British detective Graham Hill, who investigated her disappearance, joins "Elizabeth Vargas Reports" to discuss. #Missing #Portugal #MadeleineMcCann
Pennsylvania witnesses for Idaho murder suspect Bryan Kohberger include his former professor who called him one of her brightest students and a boxing gym owner where he trained daily....