What HAPPENED to Walter's brains?!!

I have more PROOF about the Zombie season!! My mole at abc SAYS that Micheal and Walter have NO new contract for SEASON 3, but I have FOUND out that THEY wILL be in season 7!! Season 7 is the ZOMBIE season!! As you can see from these PICTURES, the OTHERS have stolen WALTER's brain!! That's why he looks LIKE a zombie!! In picture two, look how he's looking at Micheal's scalp!! Walter's in for some BRAINIES!!