Spoiler: 9.15 Now that I think about it (and have recovered from my OMG factor of the episode) I think the fight won't be fatal. But it'll still make for an epic scene, specially if the killer is present. And I agree, we're defiantly seeing Nat progress from the newbie who asked permission to check a scene or collect evidence. Now she is defiantly more confident, and has much more of a "cop" look rather than "lab tech". It's been a nice tranfession to see, hasen't it?