Former Arkansas State Senator, Linda Collins-Smith, found shot dead at her home. Police make a shocking arrest --a close female friendANDThe police make a shocking discovery in a storage unit in Denver. The body of 7-year-old Caden McWilliams, found encased in concrete in an animal carrier. His family had not even reported the boy missing.Nancy's Expert Panel Weighs in:Karen Smith:  Forensics ExpertDarryl Cohen: Criminal Defense AttorneyAshley Kelly:  Licensed Clinical Social WorkerDr. Michelle Dupre:   Medical ExaminerDavid Mack:   Syndicated Radio Host