Bruno Boelstler is a breakfast person. So around 7 a.m. one recent August morning he got up and drove to his neighborhood H-E-B at the corner of Slaughter and Escarpment in Southwest Austin to pick up some sausage. The 88-year-old had barely made his way out of the parking lot, breakfast sausage in possession, when he suffered cardiac arrest, lost consciousness and crashed his silver Honda Civic into a rock in the median. Cardiac arrest outside of a hospital or airport typically has just a 1 percent survival rate, his doctors said, especially when the heart stops for nearly 5 minutes, as Boelstler's did the morning of Aug...