Did he really need to die? SPOILERS
Yes, the end of the movie seemed a little over the edge (bahahaha), and I don't mind that - it was entertaining.
But I think the movie lost a good chunk of "realism-feeling" when Richie died. It wasn't the fact that he died or that the cop shot him that made it feel unreal. Instead, I think it was the atmosphere of the community and characters - there was seemingly no change to the feel.
We're talking about a suburban community where the total of 3 officers have barely anything to do - no "real" crime. If a kid gets shot and killed, I would think the community would just collapse into horror.
Quick example that comes to mind: Laura Palmer from Twin Peaks - everyone in the school just cries - school is let out - it carries a gut-wrenching sadness to it (thanks to David Lynch, no doubt).
But in this movie, I didn't get that feeling at all.
Which is why, I think, it would have worked better if he had been shot and hospitalized - but not died. The movie could have basically stayed the same, and the reactions of the community and the characters would have fit more properly. Even the parent meeting at the end would have fit better (just change the lines in the script from "dead/killed" to "hospitalized/serious injury", and everyone's reactions would be perfect).
Redubbing anyone?