I definitley think Red John is Ray Hafner.
Red John was under 30 in 1988 and worked at the farm... Hafner was 21 in 1988 and he acted like he worked at the farm
Visualize and Red John are somehow connected... Hafner is a member of visualize
Maybe when he offered Lisbon that Job he was trying to get her on the Red John Team
Think about it.
