Pro/con
BERTRAM - No way, if he was RJ hey wouldn't want us guessing about it only to reveal that, yeah he's still RJ in episode 8. He also wouldn't kill PJ while PJ is unconscious in the hospital. Also all his actions in ep 7 show a defeated man on the run...not RJ the worthy adversary. PJ would not out him in the press. PRO - There are really no pros left for him at this point.
REED - Lets all agree he's done.
PARTRIDGE - PRO- True we never see his face in morgue and technically Lisbon never checked his pulse when she watched him die, maybe its bad writing and they allow two top detectives (Cho/Lisbon) make rookie mistakes. Also, the cut odd tattoo is interesting. Finally, so many things rule out all of the other 6, that I have to acknowledge that they may even be so un-inventive and unoriginal as to have the killer be the creepy forensic guy cliche (Law and Order SVU, Bones, NCIS, Dexter, etc.).
MCALLISTER - PRO - Promo really seems to show him being alive when presumed dead. Wine storage lady calls Gale Bertram "Thomas." Promo makes us think He is being chased. Has been there from the beginning. After Hafner, he most closely matches Rosaland/Sophie descriptions.
CON - If a promo sort of "tells" me the answer to a mystery I automatically assume it is misdirection. This is a huge blow to me believing McAllister could be RJ.
HAFNER - PRO - Fits RJ descriptions better than any of the others. If McAllister is alive, seems that others from the house could be too. What the hell happened in that house..gunshot...?
CON- Seems he's dead. Maybe one person faked death in that house, but there has to be somebody or two dead in there. Seems more likely that the BLAKE side of the room was the safer side of the room to be on for faking death while surviving.
STILES - CON - Same as Hafner, PRO- Seems too grand a character to have a mundane exit and seems odd that the Visualize angle would be closed now with him and Hafner dying.
KIRKLAND - PRO - Outside chance he looks like someone in the church (via stills from the promo). He's creepy, and the whole possible twin brother theories seem to have some interest, especially since strong cases can be made to eliminate the other 6 suspects. CON - We saw him die badly and the twin thing would be tough to weave in in just one episode without it being sloppy.
EPISODE 7- PRO - I can completely eliminate Bertram and Smith which I couldn't do before EP 7.
CON - I am much more confused about who of the other 5 it could be...