To all the people pointing out that the actor that plays Kirkland will be in episode 8.... has anyone considered he could purely be there is flashback scenes?

If it is the big reveal episode that many suspect, there will need to be flashbacks to tie up many of the loose ends.

I also personally suspect Haffner on list, primarily because I don't trust him and his relationship with Lisbon.

Off list I go for Mashburn, for exactly the same reasons.