The Character of Macalister is NOT like Red John in any way.
The biggest red flag was his fear of dying.
Red John is not afraid to die , he believes that "He will not be judged" and does NOT believe in hell.
William blake was gnostic. If i could explain gnosticism at its core in one sentence it would be that man is god. And that there isnt a man with a beard in the sky that judges people.
Macalister doesn't seem like the reading literature, listing to bach, and sipping tea type?
-Why would Red John have a 3 dot tattoo?
-Why didn't he kill patrick on the roof in the wedding episode?
-Macalister didn't know that the lady in the church was on his or Red Johns side?
(These are endless so please comment some more like this)
---Macalister was assuming the identity of Red John to cover up certain BA related murders. He used BRETT PARTRIDGE for help on those cases.

****WHATS REALLY GOING ON- 

--- KARA TINSLEY IS A HUGE CLUE