This episode gave a clear indication to me that the 'Tyger, Tyger' thing has implications beyond Red John, particularly for law enforcement in the state. Here is my theory on how it's all connected: 

Random quote - Stiles: "I know so much more than you or Red John can possibly imagine" 

Stiles is the head of the 'Tyger Tyger' group, making the most of Visualize's law enforcement contingent. Stiles and Visualize are obviously involved in shady business, even something as big as murder, and it's been implied several times. The followers are like drones, and many of them are law enforcement or connected to it. 

Red John is a member of Visualize. Ray Haffner. He has been utilising this 'Tyger, Tyger' group for his own needs. Recruiting followers, people in law enforcement etc. MAYBE even using the Visualize brainwashing techniques he no doubt will have seen or experienced as a member. 

Bret Stiles doesn't like Red John and his taking advantage of his empire. This along with his slight affection for Jane explains his leaking of some information down the years, however he clearly knows more. He holds most of it back to protect himself and the organisation. At the end of the day, the arrangement Stiles and RJ have is a mutually beneficial one. But maybe Stiles would like Jane to catch RJ to get him out of the way - but he has to go about it carefully, or risk exposing his own doings. 

Brett Partridge was a member, probably working on cleaning up or fixing crime scenes etc. Bertram is a member, one in a massive position of power. It also explains his randomly quoting Blake back in 'Red Queen'. Smith is a member (obviously) and so is Sheriff Tom McAllister. This explains the meeting of the three of them in Bertram's office, and also shows how it has corrupted law enforcement on different levels, from the head of the CBI down to a county Sheriff. Any of these 3 could be working for Red John through the group, or they could solely be a part of the 'Tyger, Tyger' group. That's a question that's still open. 

Why was Todd Johnson killing police? That's a question that has been asked many times. Could it be that he was simply getting rid of those in law enforcement who were catching on to the whole sordid arrangement? 

Finally, this was all hinted at back in season one. As we all know, Jared Renfrew wrote, in blood, 'He Is Man' or 'He Is Mar'. 

As it turns out, it almost certainly meant 'He Is Many', but in a way none of us expected. 

One thing I CAN'T figure out is the use of the poem. Did it exist as this 'password' BEFORE RJ quoted the poem to Jane? Said poem clearly has symbolic significance in regards to Jane and RJ, something that RJ surely knew whilst reciting it. But beyond that? 

I might have more to add to this as I process the episode and past ones. Cheers. 

Let me know what you think.