Billionaire Jeffrey Epstein has been arrested on sex trafficking charges. In 2008, the money manager cut a deal with federal prosecutors on previous sex abuse charges after dozens of young girls, some as young as 14, came forward. How has he been able to offend for so long? Nancy Grace is joined by child protection consultant Les Nichols, forensics expert Joseph Scott Morgan, psychologist Caryn Stark, attorney Jason Oshins and reporter Dave Mack.