Well I don't know why Kirkland is on the list? He shook hands with Jane in S05E07 when Loreli is already in jail. So what are the chances that he is keeping her that up to date? Also Stiles and Bertam are borderline bald. So the straight short hair bit does not makes sense. McAllister may have had some hair some time ago. But he and Reed have only been seen once. I cannot logically rule them out but I think if they were RJ they might have reappeared sometime. (Although Reed Smith has short straight hair)
Most of the people think Brett Partridge as RJ, Rosiland Harker described him as "Not Muscular but not soft either". Brett Partridge is soft. So Ray Haffner- 6 ft 1- Marginally Tall. Dont want to hold that against him being RJ. But not too sure. So either Haffner, Reed or McAllister with Haffner on top.(assuming he is among the 7)
Well that was the first half now I want to discuss how could RJ make a video even before Jane narrowed it down. Clearly RJ came to know about the list between episode 8(where Loreli tells Jane) and episode 16( where he kills Loreli). And what is more interesting is how does he know all the people that Jane has met and has shaken hands with? Also how does he kill Jane's happy memory?
To the third question I have no answer as of yet. To the first and the second question I have an answer that even I don't want to believe. Only a person who has been with Jane after the murder of his wife and daughter can populate that list except Jane. Van Pelt joined the team later so that leaves Lisbon, Cho and Rigsby. And who out of these knows about the list between the episodes 08 and 16 - Lisbon. RJ is not always one step ahead because he can read Jane's mind. He is ahead simply because he has got a mole( another one )- Lisbon. And how did the body ( and thus the CD) appeared at the precise moment when Jane had narrowed down the list to seven. How such precise timing? Maybe he was tipped by somebody who knew that the list had already been narrowed down?- Lisbon
Now I want to ask you why did Jane smile when he knew that his research had been stolen? Any guesses. I am not too happy with the list any chances that Jane suspects somebody who he hasn't put down? Anybody? Did Jane want to trick somebody?