The nurse pulled onto the outer road parallel to the interstate. The blue friendliness of the St. Luke’s sign radiated faintly in the dawn light as he accelerated before the red admonition of the emergency sign took over his view. He clicked off the malfunctioning turn signal. The morning traffic was light, almost nonexistent. He waited until he had reached forty-five miles an hour to remove his skull-and-bones do-rag, the first phase of his elaborate post-work ritual . . .