Yeah, solving one mystery just opens the door to the next one. There may come a point where we know the whole thing, but we ain't there yet.

Very glad you have seen Brick. The dialogue in that movie makes me so happy, and yeah, Joseph Gordon-Levitt knocks it out of the park. Plus, the odd hilarity of seeing noir tropes played out in a high school context (the carpet Our Protagonist is called onto is that of the vice-principal, not the police chief, etc).