The Walking Dead Season 4 Finale Spoilers: Rick Grimes Will Use a "Surprising" Weapon

UPDATE: Ricktator ownage is coming! Back at Walker Stalker Con, Andrew Lincoln teased that, in Season 4, Rick would use a weapon he'd never used before. Guess what? The time is now. When teasing this Sunday's Episode 16 finale, Andy told The Walker Stalkers, "You're about to get it." He laughed. "Believe me, you're gonna get it." Yessss!
Andy added that a journalist had seen the finale in advance and she was "freaking out, somewhat" by what Rick did. "You and me both, when I read it," he added. "I even made a phone call to [showrunner] Scott Gimple and said 'Scott, really, are we going to do this?' And he said 'Yep.' And I said 'OK, let's do it."
The weapon has to be his own teeth, right? It looks like Rick is going to face down The Marauders in a sequence pretty closely tied to Issue #57 of The Walking Dead comics. In the books, Rick bites a guy’s neck and kills him, then brutally slays one of the bandits for attempting to rape Carl. Get 'em, Daddy!
Original story:
Daryl Dixon (Norman Reedus) uses his crossbow to kill walkers on The Walking Dead, Carl Grimes (Chandler Riggs) is partial to the pistol that Rick Grimes (Andrew Lincoln) recently returned to him, and Rick has often bashed the living dead in the head with a rock in order to take them out. Sure, Rick uses his gun too, but since the sound of a gunshot can attract even more walkers, sometimes an the old rock to the head trick mist suffice.
However, Andrew said at Walker Stalker Con in Atlanta this past weekend that his on-screen counterpart will soon be using a new, unique weapon to destroy walkers and other enemies. Although he admits that rocks have “worked out” for him in the past, the new weapon — or should we say death-inducing technique? — is more surprising and effective.
“I’m going to not spoil anything,” Andrew dished. 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.”
The word technique indicates that Rick’s new way of offing walkers is slightly more involved than just a new weapon, but your guess is as good as ours!
Has Rick created a walker trap, perhaps one that would keep the undead away from the crumbling prison fence? Has he discovered something that poisons walkers, effectively killing them without the use of any weapons at all?
Tell us your own thoughts and theories below!
The Walking Dead airs Sunday nights at 9 p.m. ET on AMC.

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