Re: The Walking Dead Season 2 Discussion *Spoilers*
I'm pretty sure Rick shot the fat guy in the head to put him out of his misery. I'd have to watch the scene again to be 100%, but I'm quite sure he was moaning or gargling on the floor, and Rick walked over and finished him off with a headshot.
"You're not married, you haven't got a girlfriend... and you've never watched Star Trek? Good Lord..."