UPDATE: At the very end of Season 4, Episode 3, "Isolation," Carol Peletier (Melissa McBride) fessed up to Rick Grimes (Andrew Lincoln): she killed Karen and David. The episode ended immediately afterwards, so we don't know too many more details, like whether she killed them first and burned them later. We're having a hard enough time picturing Carol as a killer of not-zombies, though, even with her newfound badassery and love of knives, so we still need a second to wrap our heads around this.
ORIGINAL STORY, OCTOBER 20: We still haven't exhaled after the final shot of The Walking Dead Season 4, Episode 2 ("Infected"): Tyreese (Chad Coleman) follows a trail of blood from Karen's cell to a pair of burnt bodies outside the cell block, and one of them has Karen's bracelet burnt into its wrist. Tyreese is obviously devastated — what a brutal way to find out your girlfriend has died! But who burned the bodies? Let's examine the possibilities.
Rick Grimes Could Have Burned the Bodies
Rick Grimes (Andrew Lincoln) seems like the obvious choice. We know that Farmer Rick is not long for this world after this episode's high-stakes events; there aren't even pigs to tend to anymore. Nobody, except maybe Tyreese, seemed more shaken by potentially catastrophic disease. Did the Ricktator come back, if only for a moment, to protect his son and baby daughter? That scene with him burning his clothes with gasoline did seem awfully forshadow-y...
Carl Grimes Could Have Burned the Bodies
Carl Grimes (Chandler Riggs) was trying really hard to get close to his dad in "Infected," and he definitely got his gun back at the end. Carl was visibly affected by how shaken Rick was, and we know that Carl loves saving the day, sometimes in ways that are misguided and impulsive, at best. Could he have taken Rick's gas canisters and gone to town?
Hershel Greene Could Have Burned the Bodies
It seems pretty unlikely that Hershel Greene (Scott Wilson) burned the bodies, what with the bum leg and the grandpa-esque disposition. But we figure we might as well give this theory, brought up half-jokingly by Paramore's Hayley Williams in this week's The Talking Dead, a chance. He did have access, after all. And from the looks of Episode 3 previews, his daughter Maggie Greene (Lauren Cohan) seems pretty pissed at him.
Carol Peletier Could Have Burned the Bodies
Dr. Subramanian ("Dr. S") Could Have Burned the Bodies
We don't know jack about Dr. S, other than (a) he's a doctor, and (b) he's living in the prison. Is he an evil doctor? Is he a doctor at all?! We know he had access to the patients; we don't know what his intentions are.
Who do you think burned the bodies? Let us know in the comments!