She wasn't brain dead. She was in a Persistent Vegetative State. Her lower brain functions were partially intact, allowing her body to continue operating without a ventilator, etc., but her cognition was gone.
And this diagnosis was made based on what evidence? Was it all based on what she could or could not do with her eyes? Hmmm. Wasn't she blind? I wonder how these doctors could mange to diagnose her brain potential without even factoring in the fact that she was blind. You have to wonder about their abilities to diagnose PVS if they did not diagnose such a basic thing as blindness, and did not even take it into consideration when looking at her.