When Bruno Heller revealed to the actor who IS a suspect, that he was actually Red John, this was his reaction.

The actor was "stunned and flattered."

"Earning this little place in pop-culture history was the last thing I ever expected...Truth be told, I thought I thought I was a red herring." 

In the daylight, in a picturesque park, miles outside of Los Angeles, Patrick Jane chases down and slays Red John. There is noone else around, he is not accompanied by CBI. The moment of death itself, with Jane straddling Red John and looking into the eyes of his prey, is one of shocking intimacy.

How is Red John caught? Simon Baker: "He desperately wants a relationship with Jane to the point where he exposes himself and puts his life in jeopardy."

Red John was the leader of the Tiger Tiger conspiracy.