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b'Teen best friends, Abby Williams and Libby German killed while out walking trails in broad daylight in Delphi, Indiana. One of the girls snaps a cell phone photo of the suspect, who has never been caught. Four years later, the families are still searching for answers to this mystery that gripped the nation. Now, is there a new suspect, related to another vicious crime against a 9-year-old girl?\\n\\nJoining Nancy Grace today:Becky Patty - Libby\'s Grandmother\\xa0abbyandlibbytip@cacoshrf.com\\xa0Ashley Willcott - Judge and Trial Attorney, Anchor on Court TV,\\xa0www.ashleywillcott.com\\xa0Caryn Stark - NYC Psychologist, www.carynstark.com\\xa0Sheryl\\xa0McCollum - Forensic Expert & Cold Case Investigative Research Institute Founder, ColdCaseCrimes.org\\xa0Joe\\xa0Scott\\xa0Morgan\\xa0- Professor of Forensics, Jacksonville State University, Author, "Blood Beneath My Feet" featured on "Poisonous\\xa0Liaisons" on True Crime Network\\xa0Alexis\\xa0Tereszcuk - CrimeOnline.com Investigative Reporter, Writer/Fact Checker, Lead Stories dot Com, Twitter: @swimmie2009'