I think Red John is Dr.Linus Wagner or Alex Jane (Patricks father)
Dr.Wagner
1.He is on prison so he has a perfect alibi
2.Red John is powerful.He can put a double in prison.
3.He fits the age
5.He is a doctor so he knows where to cut victims.
Alex Jane
1.He possibly has the same skills as Patrick
2.It would be very interesting if he was Red John
3.Fits age
