Not a theory, but I'm wondering PJ's emotions before
putting the 5 suspects together. PJ took deep breaths in his house when setting
up the game.

WHY?

In the finale of season 3, he set a trap to
lure RJ by giving different suspects with different hotel room numbers. He
didn't look distress at all even when he was sitting in the mall with Bertram.
Remember, PJ was expecting to meet Red John face to face there soon.

All
I'm saying is PJ's facial expressions and emotions were so different in this
face off. Did it mean anything?