At 4:53 p.m, a former Army surgeon and inventor named John Croushorn strapped an inflatable tourniquet around the limp man's chest. "We were all covered in blood. The nurse was applying pressure, and I told her to remove her hands," Croushorn tells Popular Science. "She said 'No, blood's just going to go everywhere again.' And I said 'It's okay, you can take your hands away.' So she did, and she was shocked. There wasn't a drop of blood coming out once the tourniquet was on." They rushed the man to the operating room, where a surgeon was able to repair the damage to his arteries.