Watch On the Case with Paula Zahn Season 4 Episode 4 Online

Margaret Bradley had Multiple Sclerosis and was living with her daughter, Rhonda, a nurse. A part-time aide helped Margaret while Rhonda was at work. In 2002, Margaret suddenly fell ill and died the next evening of unusual and dangerously low blood sugar levels. Rhonda, who knew her mother didn't have diabetes, looks into her mother's untimely end and wonders if her mother's death was really murder. Her search for answers would eventually lead authorities to open a criminal investigation.