First one; we need to find leader of RJ. I thought, Bret Stiles is the most powerful person in the seven suspect list.
He can impress a lot of executive, police, agent, businessman.. etc..
Remember that "red barn" episode. First murdered was found in a red barn where was the place of his.
So that, Leader of Rj must be very old. Anyway everyone knows he has got secret powers.
If seven suspects list is not truht , RJ is absolutely MUSHROOM.
And I would like to say that all seven suspects could be Red johns employers :)