More than two-dozen first-graders were squealing and bouncing balls on a mid-February morning in the gym at a school in Boston when 6-year-old Olivia suddenly collapsed. No one saw it coming. The little girl with the strawberry blonde hair and no front teeth had been in perfect health. Her PE teacher Robert rushed to the girl's side, only to feel her pulse fade away. He thought of his own young daughter, the same age, and got to work. Using their CPR training, Robert and kindergarten teacher Kathleen pumped the girl's tiny frame. It was an effort that doctors and emergency workers later credited with saving Olivia's life. Firefighters and emergency workers arrived shortly afterward and shocked the girl with a defibrillator. Olivia's heartbeat returned. This is the happy ending that the AHA works so hard with achieving by encouraging CPR training and AED Placement.