A Utah nurse saved a softball player's life after performing CPR during the game. Registered nurse Danya Topham was in the stands when 57-year-old Darren Ewell collapsed on the ball field. She immediately began chest compressions on him right on the field. After more help arrived, paramedics used a defibrillator to shock the man's heart. Thankfully, it worked. He had suffered a massive heart attack on the field that required four heart stents. Now, Ewell calls Topham his guardian angel.