I beg the people who keep posting this to find the rest of it and post that, because leaving us wallowing in zombie and dog hurts is inhuman, literally lol. And with all of my Google skills I can't find if this has a part two
at first he is normal then he's a zombie but he still loves him any ways and sacrafices himself for his brain dead best friend who doesn't even know whats happening
http://sangcoon.deviantart.com/art/You-re-still-here-414988592
No part 2 though...