"If he had not had CPR, and good CPR, he would not have survived," White said. \"Usually,\" Koehn said, \"there was someone on the sidelines saying, 'Hey, you want me to take over? You need a break?'\"More Than Two Dozen First Responders Save Man in Marathon CPR SessionThe marathon CPR went on for 96 minutes. \"My heart wasn't pumping anything, so the only thing that was pumping my blood was those guys doing CPR,\" he said