While watching the rerun of last season's finale, it suddenly occured to me that Red John is Rigsby. There was really nothing specific that pointed to Rigsby, except it makes complete sense.
He's a member of the CBI, and has grown close to Jane.
He's the absolute last person anyone would suspect, because he's so naive, innocent, and nice.
Physically, he fits the description of Red John - though he's probably on the younger side of the spectrum.
Like I said, there is absolutely nothing that points overtly to Rigsby but it makes so much sense for my instincts.
(I'm only posting this here because my husband said I needed to - just in case I'm right.)
