I don't know who RJ is, but I have theories about other issues:

PATRIDGE IS REALLY DEAD.

Patridge saying Tiger Tiger confirms he was a part of the Tiger Tiger organisation. (He couldn't have been just aware it existed and not a member, RJ doesn't work like that, he would have killed Patridge long ago then.)

Patridge works CSI, so he must have been covering RJ's tracks up till now. So when Heller said Patridge had to die? It's not because he is RJ and wanted himself off the list. (The list had 7 suspects. It's not like Jane had narrowed it down. So why fake his death?) It's because he was going to diverge information about RJ or the Tiger Tiger organisation, or he had made a mistake.

So when he said Tiger Tiger to Lisbon? There are two possibilities:

1. He thought Lisbon was part of the organisation and wanted her to help him live.

2. He was trying to tell Lisbon about the organisation. 

VISUALIZE CONNECT:

I'm pretty confident I got this one right. 

1. RJ is a member of Visualize. (We've known for long)

2. Visualize has dirty secrets as a cult. The Tiger Tiger organisation covers them up and makes sure the government doesn't shut it off. In return, Visualize assists RJ to cover his tracks.