OK, it should be obvious now why Kirkland was asking the "fake" suspects if they recognized him.  If one of them was actually red john, they would certainly recognize him since they killed his twin.  So we can now eliminate Partridge and Kirkland.  We can eliminate Reede Smith, Sheriff McAlester, and Bertram.  They are part of this new story line about an inside group that will be an ongoing part of the plot after red john is revealed.  

That leaves just Ray Haffner and Bret Stiles.  Haffner is joining the CBI to help with some kind of investigation on next week's episode.  He is the only one that fits the profile to be red john, unless red john turns out to be someone not on the list of 7.

Also, I've always thought the "he is mar" was going to be "he is married to......", but I just never could put the pieces together.