The Walking Dead Season 4 Finale: 12 Big Questions That Need Answering

5. What Is Rick's New "Surprising" Weapon?

This one is not related to the preview, but in an interview at Walker Stalker Con in Atlanta ahead of the finale, Andrew Lincoln confirmed that Rick is about to unveil a brand new surprising weapon to dispatch opponents that took even him aback:

"But Rick develops a new technique this season for dispatching people. And it isn't a gun, it isn't a knife, it's something quite different. And I look forward to hearing your reactions, because I was shocked... I even made a phone call to Scott Gimple and said 'Scott, really, are we going to do this?' And he said 'Yep.' And I said 'OK, let's do it."

Now that sounds interesting. Could it be his teeth? In the comics, Rick kills a bandit who attempts to rape his son Carl with his teeth by biting his neck, and you can see from the images in the preview that he has blood on his face. Maybe it's not all his own?