when Patrick gathered the last 5 suspects , and said that Red John have the 3 dotted tattoo , it seems to me that its like his old tricks, RJ doesnt have the Tattoo, its a trick  to see which one of the suspects appears relieved or which one didnt look around him.
he did such trick many times before , may be all the guys who have the Tattoo arent Red John which leaves Haffner and Stiles

IMDB shows only Bertram and Partridge in the Red John reveal episode.  

Listen up Mr Heller - You know, most fans want Brett Partridge to be Red John.  I can't see why you would not want to give your fans that gift, weve committed 6 years to follow your work.  Bertram is a shit Red John, lets face it...hes just a totally boring character that you have not developed.  In fact, its only Partridge, Kirkland and Stiles thats got any character weight through the series.  The rest are totally underdeveloped. It comes down to this....do you want to celebrate with your fans or celebrate with your vision?

Hit Plausible if you want Partridge to be RJ
Hit Unlikely if you want  Bertram to be RJ

This is a "Red John is NOT Brett Partridge" rant.

A while ago I submitted feedback that they should also have a section here for "Who is NOT Red John", but this has not happened.

People persist in theorizing that Brett Partridge is not really as dead as a floor snail.  But I truly don't believe that Patrick Jane and/or the CBI would not have thought of this very obvious possibility to escape from the list. They know Red John knows about the list. Would it not be a very obvious way to try and remove yourself from such a list? A way which a minimum of professionalism could easily prevent? Is Red John that stupid to even try it, even with all his possible buddies in the FBI/police/CBI?

Because if ONE not-dirty agent decides to really check, that's it. Game Over for Red John.

And also, many times we are not shown common sense moments on-screen. Like the CBI verifying that Partridge's body is really dead. C'mon, we can assume they did do that, or what kind of pros would they be?  

This is not a soap opera, which is why Brett Partridge isn't going to magically appear alive and kicking and full of soap in Lisbon's shower one morning a la Bobby Ewing.

And like people saying that we never saw Jane being told about Kirkland's death. Please!  Do they have to show the actors taking a crap every day, before we know that they actually did do that? Would that be good TV, showing every mundane moment before we can know that it happened? This is not Big Brother or The Kardashians, it's The Mentalist. And since these guys only have about 45 minutes for an episode, some things can stay mental.