Okay...from the top: Patridge is finally out. That leaves 6. But all 6 are working in concert. Jane(We) will find the reason Patridge dies in episode 4. Rigsby and Vanpelt are killed in episode 3, and in the next episode Bertram is in a meeting with: Haffner, R. Smith,  and McCalister. In the preview someone asks "What does Jane know?" and Bertram answer's with: "That is the question..."  

   So that and with last season's meetings with Bertram and Kirkland make this whole thing point at Kirkland being the ring leader, and you are probably right about Stile's son..whom is probably Kirkland...

When does Kirkland come back in? Or Stiles for that matter?