There's a lot of powerful people that jane's pissed off not just RJ.
That's What Ray haffner told teresa and van pelt, warning them as friends.
meaning that RJ is nothing compare to those powerful people (tiger tiger)
i think Haffner can't be RJ, his kindness to teresa doesn't fit the RJ character. he knows too many things and he's close to visualize and the tiger.org, and more,  he doesn't seem to be very interested by RJ.

this is a good show a very good show, anyone can be RJ

when Rj will be revaled, if he will be revealed we will see him differently and he will then play his real role.
we have been manipulated by this show, before the liste of seven was revaealed, each time we saw macallister haffner or smith we thought they were idiots, but know we almost fear them, altought they're acting the same
If the show had ended at season three,, it could've also been a perfect end (at the time) : PJ had his revenge on RJ in a wonderful way, the show was already written, but since CBI ordered more seasons, at least three, they had to come up with something. and it was well done.
They had to keep the enigma of RJ and come up with another thing more powerfull for the rest of the show.
I made a post few days ago, and i really think that RJ is really Timothy carter ans was killed by PJ, but it still one of many possible theories. and the way that haffner is minimizing the role of RJ, made me stick to my theory.
in the next épisodes we will see a Young actor but in who's role.
he could be maccalister, haffner and Pj when they were Young, that leads to nothing.
And we also see Pj gathering the suspects and there was an explosion.
I think PJ knows that RJ is not one of them but he wants to know why RJ led him to them.
after all it was well played by RJ to tell Loereli to let slip the handshake thing.
So Pj would want to know what is the connection between them and RJ or what do they have in common, (tiger tiger) and (visualise) . what would they tell him? why the explosion. although i think it will explode but not at the same place where they are. ithink rigsby and van pelt will be the victims of this explosion, for more drama, they were too happy that something must hppen to them.
enought wrting for the moment,, i'll tell what are they going to say to PJ before next episode.
comment please.

Hiring the P.I was complete genius on RJ's part. I can't be the only one who thinks she looked a lot like Summer, coincidence? I think not, which means that RJ would have to be somebody who knew about Cho and Summer. Also, whether they caught the bug or not RJ would be in a superior position to either lead Jane into a trap or have the CBI office bugged. Correct me if I'm wrong but didn't Haffner still work for CBI during that time?
Haffner also fits all of the descriptions we have on RJ thus far, he is my number one pick for being RJ.

This not a full theory just some observations combined with some thought.

I believe the tree doted tattoo is a red hering and based on a misinterpretation on janes part.

Watch the scene closely from the time when they start rushing towards the PI till jane gets there.

We get to see the tracking including the Sac PD we even see a police car seemlingly rushing towards the scene and we see the cop arriving in his car.

All this is creating the illusion that we know what actually happend. We are led to believe we tracked the cop from the call until he reaches the scene. We see the tracking, we see his car and we see him arrive. In reality we don't know anything about the cop before he arrive at the scene. We don't know whether the tracking signal showed anything real, neither do we know who sat in that copcar and where it was heading. But our brain combines these three possibly unrelated images into one coherent story. Seeing Cho Rigsby and Van Pelt relax as soon as the cop arrives is subconciously pushing us further toward trusting him. We trust who our friends trust.

When he arrives he comes in holding the gun in his right hand (the one with the watch) and he then uses his left trying to stop the bleeding. Also notice how the breathing of the PI gets more hectic as soon as he arrives.

When Jane arrives the scene looks almost the same as we have left it, this leads us to believe nothing relevant has happend in the meantime.
But there are a few changes. The cop has switched sides now using his right hand to stop the bleeding. Also if u look closely the pool of blood arround her head apears to be much larger than before.
When Jane leans forward to ask the PI: "who did this to you?" we get to see the policemans left arm. Just above his wrist we can see a red spot, that seems to have the form of a red triangle.
Notice that the PI only says: "red tattoo on his left arm."

Jane than sees the 3 dots on her shoulder and asumes she wanted to disclose the nature and position of the tattoo, when infact it could just aswell be that she only wanted to point at her own left arm.

We have to be skeptical about following Janes assumptions:

"Red John bugged the office!"
"Red John killed the PI!"
"Red John has a three dotted red tattoo on his left shoulder"

These three are not facts but Jane beliefs or assumptions and there could all three be false.