This isn't a theory; it's musing...

Key unanswered questions, in my opinion:

If the 1988 killing at the Visualize farm was the work of the same person as the Red John killings since 1998, why were there apparently no killings for ten years?  Was he in prison?  In the military?  In law enforcement training and/or rising through the law enforcement ranks?  Serial killers typically don't just take ten years off.  Why did RJ?  Or did he?  Could the 1988 killing have been his inspiration rather than his handiwork?

What's the deal with Lorelei's bullet wound and her appearance in the list of suspects video?  Something there doesn't add up, and the simplest way to resolve the conflicts is to assume that she's not really dead.  If the video was actually shot much later (with a living Lorelei), it would explain how RJ supposedly got the list before PJ made it.  Namely, he didn't; it was a trick, just like PJ said.  The list was stolen from Jane's office while he slept, the video was made the same night, and given to Jane the next morning.

Why did PJ's daughter (in his hallucinations in "Devil's Cherry") ask him "Does anyone know who you are?"  She could have just meant "Has anyone come to understand you and know the real you?", but somehow I don't think so. The wording seems off for that...

Lastly -- and most importantly -- there clearly seems to be a mole (knowingly or not) who is providing RJ with an enormous amount of info on happenings at the CBI.  And I don't mean Bertram, because it includes even minor day-to-day stuff, and often gets to RJ literally within minutes. So is RJ himself a CBI member, or does he have an accomplice (again, willingly or not) within the team?  It seems like he must...

I'm still trying to figure out how RJ compiled the list of 7 suspects. To me this is the biggest curiosity yet to be explained. In my opinion it can't be via Kirkland's theft of Jane's board and material for one simple reason. We see Kirkland is still studying the board AFTER the list has been compliled.

If Kirkland is RJ or an RJ confederate then he wouldn't be studying Jane's board after the list had been made so he appears to be actively hunting RJ for his own purposes.

Truthfully flaws can be found for each of the suspects but from a simple description perspective Smith, McAllister and Stiles just don't fit the criteria. Smith is fat & Stiles & McAllister are old. Partridge is dead so that leaves Haffner and Bertram both of which have been pointed at pretty strongly as being RJ. I'm guessing Haffner but in reality he and Bertram are too tall based on Rosalind's description.

All I know is the first two episodes of the season have grabbed me again. I can't wait to see how this all plays out!