The richer details about episode 8 being Kim Fischer's dream are very convincing. (The little girl looking like Kim, Jane talking Spanish, Rigsby and Van Pelt's personality being wrong because she doesn't know them personally.)
Its Kim Fischer's dream on her flight to Mexico, and it is based on FBI case files she read.

Here is a very fine detail, which is wrong with the dream. The positions of Jane's wife and child's graves are the wrong way round in episode 8.

In episode 22 of season 4, Jane visits his wife and child's graves. There are closes ups of each grave and it is very clearly shown Charlotte's grave is on the left and Angela's grave is on the right. In episode 8, Angela's grave is on the left and Charlotte's is on the right. That is wrong!


Brett Partridge: Maybe they just made a mistake?

Patrick Jane: No. They could have put the graves the right way around, but they didn't, because it's a dream.

Brett Partridge: Interesting theory...

Patrick Jane: You know what your problem is my friend, you take hating a little too seriously. If you don't get horny attacking Bruno Heller's writing, then I'm Britney Spears.

Thank you for reading.

(And yes, this means there is no proof Thomas McAllister is Red John)