When Jack opened his eyes, he found himself lying on a metal table that was nearly freezing to the touch. Why was he naked?
He turned his head and saw a shocked-looking man in a white smock, looking over him and holding a surgical knife in his hand. Why were the lights so bright?
The man in the white smock suddenly dropped his knife and then fainted.
Jack sat up and looked around. Immediately, he understood where he was. It was a morgue.
He looked down at himself and saw his body. His original body. Except it was laced with deep cuts and burns, probably from the car accident. With those kinds of injuries, however, he didn't think he could survive. But, of course, he hadn't.
He suddenly remembered the after life (or whatever it was) and how he had accidentally fallen into "waiting room" without first obtaining his food. The result must forced him to return to his original body. But his original body was dead. So what was he now? Like a zombie or something?
He placed his fingers to his neck, checking for a pulse. But, just as he had feared, there wasn't one.
He really was the walking dead.