Bellamy Gamboa disappeared in early July from her Virginia Beach home, leaving behind 4 children. The 50-year-old mom is still missing, although her ex boyfriend -- and father of her toddler twins -- has been charged with 2nd-degree murder and “contributing to the delinquency or abuse of a child.” Nancy Grace digs into the case with private investigator Vincent Hill, lawyer Ashley Willcott, psychologist Caryn Stark, & CrimeOnline.com reporter Leigh Egan. Writer Missi Rasmussen and private investigator Jacqueline Heller, co-authors of the upcoming book "She's Not Here: The Strange Disappearance of Lisa Irwin," & psychologist Dr. Chloe Carmichael, also join Nancy for a look at the baby Lisa Irwin cold case.