Frankly when I came to this realization I had the chills.

If you caught the promo, we saw Red John, cooly walking down the church aisle, looked like a either bald or thiinley haired, middle aged, averagely built man. Taller than Stiles, shorter than Bertrum. 

I will not waste your time. Give me 30  seconds and I guarantee you, I will prove my case:

What name did Bertrum use to check into the storage unit? Thomas

What was in the storage unit? Red Wine. Where is Thomas McAllister from? Napa Valley (Wine Capital)

These clues were given in that small scene, but from these clues, everything just clicked.
Heres How:

When Bertrum was going to reveal his shoulder, he looked to McAllister, as if waiting for approval. Smith looked to Bertrum, his Blake Association "Boss", because he admitted to being in the dark about Red John. 

When Patrick saw his shoulder, the red john soundtrack played, and Patrick came to an almost surreal realization. It looked as if he wanted to shoot McAllister right there, if Stiles had not urged him to look at the other two.

The concluder: 

Heller has put in many themes to this show, but Red, Birds, Blood, and Wine, are his overlying themes in episode naming, and motifs. McAllister planted the encoded "list of names" knowing it would reach Patrick. It is not a list of names but a letter telling him to meet in the church. Patrick decoded it, lyed to lisbon about knowing what it meant so he could go alone. 
HERES THE KICKER:

In the church there is symbolism: The wine of the sacrament of Jesus, and the wings, of BIRDS (The phobia McAllister has), and Patrick realizes it all makes sense.