Fantastic work, and great job on all the dialogue, really elevated the whole thing. I was also impressed by the actual gameplay bits (like the game of tag) - could maybe have done something similar with the murderer? (like he runs away if you get too far from him or something like that). Biggest UX issue I encountered was maybe that you have to press enter to further the dialogue but also enter to start a new dialogue, so I kept restarting talks (with the ones you can speak to multiple times, like the policeman), which was a little silly, but not really game-stopping or changing :)
Great work and great use of assets too!