Ok, so I have been thinking about the whole scene where Cho is checking out Partridge's shoulder in the morgue and I have been puzzling how this would square with the possibility of Partridge possibly being alive and Cho not noticing that the body wasn't really that of Partridge. Just couldn't reconcile it. But while reading comments on a different theory I found this comment by sjn:


"regardless ...in one of the advanced reviews of "Red John" didn't someone say "it's always good to have Cho on your side" or something like that? Maybe Cho is working with Jane and in the morgue he notices that the body doesn't belong to Partridge, but keeps it quiet from Lisbon etc and only lets Jane know. ..................
 anyway as i said still not certain it's RJ but just writing to say there may be a way to explain the body not being BP's whilst still maintaining Cho's reputation as a good cop. and the comment from the reviewer could support this ..."


To me this could be a possibility. Hmmmmmm.......