For 10 years, the media and the police continued to investigate the highly publicized murder of 6-year-old JonBenet Ramsey. But thousands of unsolved cases gather dust in police files. Why do some cases move to the top of the list?
Valencia Mohammed, mother of two murder victims, both unsolved crimes; founder of support group for mothers of unsolved crimes
Lou Eliopulos, forensic consultant and senior homicide analyst for the Naval Criminal Investigative Service; author of Death Investigator's Handbook