Mary Tyler Moore was the sweetheart of American television, starring in two ofthe most successful sit-coms of all time. She pavedthe way for strong, independent women on screenand captured the era’s spirit of freedom and optimism. But behind the iconic smile was a life beset by tragedy, illness and addiction. On January 25th, 2017, Marydiedof a cardiac arrest in Greenwich Hospital, Connecticut – at the age of 80. Now renowned forensic pathologist Dr. Michael Hunter is investigating the events leading upto her final heartbeat to explainthe cause of death.