OK, Partridge being the first to die and being killed by RJ is starting to make me suspicious along with the fact that Cho only looked at his arm, not his face and that Jane wouldn't answer to Lisbon as to "what this means" is also bothering me a bit and tells me there's something more to this.

Also, the odds of it being Berstorm are low and if it points to him I would say they're using the bald guy thing as a red herring to divert attention from McCallister.

I am also suspicious of the guy encountered in the curch being RJ as it seems that Jane isn't talking directly to that person and is talking to someone behind him.

I also think the "handshake" might be more significant as someone that Jane hypnotized at some point since his hypnotism involves a hand shake.  There might be an explanation that he hypnotized RJ and awoke the demon within.

I know this is insane and it would take out a major star, but I can't get out of my mind that it's Lisbon.  Strange, I know but it's stuck there.