K, I'll give some feedback (since that's what this forum is for)
The core mechanic of requiring a guess to get a clue, means the game essentially is just a game of guessing. (Playing on easy)
Sorry if i'm mistaken, but it seemed like a person becomes innocent (halo) if they are falsely accused or if a clue clearly proves they're innocent. This makes it even more clear that the player doesn't have to think or do anything other than accuse a person who doesn't have a halo.
This doesn't necessarily have to be a BAD thing. I can picture it being somewhat satisfying if you made incorrectly guessing more rewarding. For example, if the environment was more interesting (like in a mansion) with each person looking like they were in a party (some chatting, some eating, some sitting). If each death was unique (chandelier dropped on one person, someone else poisoned), a simple guessing game could be fun if you are curious about each death.
Another issue for me was that the controls were unnatural. There was no mention that arrows moved you, WASD couldn't be used, and clicking (which is often how you navigate in flash games) had no function.
Cute game, but it could use some refinement
Keep on creating!