When Amy Jones burst through the doors of the intensive care unit, she found a line of health care workers in the hallway, she said. Jones was sobbing. Shaking. She let out a scream. A doctor named Juan Fitz was dying. Fitz, 67, was Jones’ common law spouse, she said, and the father of her two young kids. To his co-workers, he was a revered colleague in the emergency department at Lubbock’s Covenant Medical Center, where he had worked for roughly two decades. Fitz had driven himself to the hospital in the early hours of the morning four weeks before, after testing positive ...