Looks like the ol' Sheriff is Red John, based on the curious hairline of the man Jane is chasing in the promo for "Red John" (episode) next week. Bertram is probably just a final misdirection.

It's sort of disappointing. I mean, I guess in a way it makes sense. Wears the kind of boots RJ wore in the S2 finale. Smells of "pine and earth" like Rosalind Harker described. Good whistler. Has a phobia. Fits together. Guy even prefers to refer to Patrick on a first name basis, wants to be friendly with him, gain his confidence.

My biggest problem, though, is... who is Thomas McAllister?! I mean, he's in the second ever episode of the show in a non-RJ-related case, has NOTHING to do with Red John, doesn't even appear in person again until this season. Why was he even on the suspect list to begin with?! He's a nobody! But not like, you know, a "yeah, he's a nobody, so he's perfect", but just a NOBODY. That's like Red John being, I don't know... the Russian gangster from S1, Shirali Arlov. What a random character to make RJ. The writers might as well just admit they themselves had no idea who it would be until now.