The Ending...
No way I'd ever hate on this movie. I knew what I was getting going in.
Other threads about the ending seem like they missed the big picture. They talk of the zombie suicide... But they missed a piece...
See, I kept thinking it was strange that he picked up one shotgun shell for a double barrel shotgun. Then the zombie suicide follows.
But why? Why does he pick up the one shotgun shell... Then it came to me at midnight while lying in bed... He himself committed suicide.