An Alabama nurse steals insulin from work, then poisons her private investigator husband. Police find his body in their home. Did Marjorie Cappello kill her husband because he found out about her secret drug use? Did he plan to divorce her and take their child?Joining Nancy Grace to discuss the case:Kenya Johnson- Atlanta Prosecutor  Karen Smith- Forensics Expert of Bare Bones Consulting  Dr. Caryn Stark- Psychologist   Steven Lampley- Former Detective and Author of "I Was the Girl"   Rachel Hammers- Freelance Broadcast Journalist of Huntsville, Alabama