How did he survive that long with no medical care or food, it looked like it's been a long time he was in there. As you can see the building looked in rough shape from the outside and inside like alot went on, such as trapping zombies inside, and all this time he didn't die? zombies couldn't break through the door? All other patients died and only he was left there? I was thinking he was in a coma and they just left him there to die but he didn't?