Proposal:
How Robert Kirkland faked his death.
When Jane and the CBI team last heard from or of Kirkland, he was going away for due processing... And Jane had (apparently) dismissed him as a suspect upon hearing his story.

Then Kirkland got convicted, and sent to prison.
This interlude may be hard to catch, as it is only hinted at:
When we see him in the next scene, at the end of the episode, he's dressed and chained for prison.
And this is where the Tyger Tyger crew took over, and got him shot.
Homocidal prisoners shot while trying to escape, en route to prison, may not cause that much of a ruckus in the media. And the Tyger Tyger crew would likely do what they could to hush down the case, by getting it processed by the right people. So Jane and CBI team may not have heard anything of it, when Jane calls his 5 suspect to meet him at the house.

Essentially, all that Kirkland needed to pull this scam, was someone to aid in the illusion part of his getting shot to death.
My main suspect: the driver, whose gun was used, and who was to call it in, after Reed Smith had safely left the scene of the shooting.
Supposedly, the driver had got a body stashed and ready to replace Kirklands, and might even proceed to blow away the face from behind, making identification attempts difficult.

Kirkland pulls off his prisondress and the bulletproof vest under it, and is driven to a secure location. I do expect he himself ordered the hit and timing, mind.
Probably even ordered a good and dependable shot to do it - through his RJ contacts with the Tyger Tyger crew. He knows exactly how they will handle procedure to cause the least possible ruckus, and can as thus boldly suggest to Smith that he just shoot him point blank, where he stands. A trained pro like Smith would never do so, and Kirkland knows it.

It is not crucial for this hoax whether Jane ever hear of it or not, but only that the Tyger Tyger crew believes Kirkland, the homeland security agent asking dangerous questions, to be dead. And why wouldn't they? After all, Smith did shoot him.
No reason to suspect a bulletproof vest, or that your Tyger Tyger driver is really a Red John pawn, and your victim Red John himself.

[This is a simplified version of theory combo 11112]