Hey, thanks for all the feedback. I'm not going to blame everything on lack of time, but I was definitely planning on letting the player choose who they thought the killer was.
I did think the screen shake was a little annoying, I'll find a better way to do collisions for the future and I'll add an interact button too, so you don't have to walk into people to talk to them.
I also feel the dialogue system was kind of rushed, next time I'll make an actual text box for it.
I noticed that the environment was kind of plain, it felt pretty empty. Some other NPCs or some interactibles could definitely help with that.
I'll watch the video you linked, it could help me with future games even if I don't make a mystery game next time.
Thanks again for the feedback, I'll try to include and improve on all these things for future games.