Perspective coming from a game-tester and user-experience designer.
The core gameplay of identifying a killer as a third-person omniscient observer is fun. However, the win / loss state is entirely governed by how many people die before you identify the killer and kill them yourself and there is no "total population counter" that decreases over the course of the game, which is the most important thing so far as I can tell, because it determines whether I lose or not. Instead of in-game tools to help me identify the killer there's seemingly a bunch of superfluous mechanics that I never interacted with such as the Economy and activities that the characters are performing, and I don't see how they help me catch the killer(s).
Slight changes to the UI could also be beneficial. Having the list of characters (once again showing the total population would be nice) also show who is deceased or not would be useful (I don't know why it matters if someone on this list is "hungry" but it would be useful to snap to a dead body.) Making it a side panel rather than a center pop-up that closes when I click on a name would make it easier to snap through each character on the list in order. It's also weird that I can only click on a character from the list in a clickable area around their name when the name appears to be in a gigantic button, most of which is not clickable.
My main feedback is essentially, "[Do] Less, but better."