love the music, the whole game is a vibe.
I wasn't able to find this in game, but it would be nice if the unemployed suspects had their houses labeled (or maybe a way to look up suspects addresses in like yellow pages or something if you want to preserve the old-fashioned-ness). Better than wasting a bunch of time traveling to every house in a location looking for a single suspect.
I would love to see this game developed out further, I like the idea and was really stoked to play, but I'm definitely left wanting more exploration of the concept. I was hoping there would be: investigating to find motivation, investigating to find people's routines, interrogating witnesses and such (judging from the unused "talk" option, it looks like you wanted to add some of this stuff and didn't have the time for it yet).
Good luck with your continued development! This game was dope!
As a heads up, I got an error when generating the harder case, I submitted it to the git repo if you end up working on this project further later on.