Video surveillance shows teen barista Samantha Koenig pulling together an order at the walk-up window of the coffee shop she works. The lights go down and Koenig is seen walking away with someone. Kidnapped and murdered, the 18-year-old falls victim to one of the most prolific serial killer in U.S. history. Israel Keyes, who later admitted to killing 11 people across the country had developed an elaborate plan to demand a ransom for the 18-year-old's return. Joining Nancy Grace today:Ashley Willcott - Judge and trial attorney, Anchor on Court TV, www.ashleywillcott.com Bobby Chacon - Former Special Agent FBI, screenwriter on "Criminal Minds,"  leading the search teamDr Bethany Marshall - Psychoanalyst, Beverly Hills, ww.drbethanymarshall.comSheryl McCollum - Director, Cold Case Investigative Research InstituteNicole Partin - Investigative reporter Crime Online