okay, so clearly Robert Kirkland is an interesting character. But I don't think he is RJ just for the fact that you don't make your big mystery nemesis so obviously suspicious. He is important though. If it was chess, then RJ would be king and RK would in my opinion be the queen.
I suspect this because for starters it is clear there is a connection between RK and RJ. Also RK is in a high and powerful position. This means he has power(duh..), but this also means that he is smart, purposeful, and that he gets the job done. If i were RJ then i would definitely want this guy as my right hand. Besides this he enters the story at a convenient time. The story needs someone more interesting than all the minions that represented RJ till now, so they trow in someone high up the food chain. like in a game you face a sub-boss before fighting the real boss. that is the function of RK in my opinion.
For RJ himself I think he hasn't entered the story yet as a purposeful character For me with all of the first 10 suspects I understand why he/she could be RJ but it would always be kind of a disappointment, like a cheap trick. I hope in the end it will be more complicated then 'taadaa, it's the CSI guy' or 'haha, got you, it's grace'. Till now RJ has some screen time I think, but more like a suspect in some case, or a witness or something like that. So if you find an actor with a too high profile for a 50-seconds role, then in this theory it would be plausible that is RJ.
but heck, what do I know. Maybe it's still a a dream in the end, and RJ is actually PJ's father!
(off-topic)I read somewhere that at times that RK is present that there is RJ-related background music. didn't check if that's true but it would be interesting to find that kind of patterns with certain characters.
