I was reading Julie's statements again last night and in one she mixed up the time when she was on teaching practice, which I doubt many teachers would have done. It tells me she was under stress at the time she volunteered her statement and wasn't as organized an individual as I thought, even though now she has reached the top of her profession(and all credit to her for that achievement). As for Stephanie's dissonance link, maybe Julie was looking beyond the murders to a future together with Jeremy, or was just hoping that somehow there would be no ill effects of staying with him, just as a smoker blocks the thought of cancer out of his mind.