Really really cool premise, but I found the grill mechanic to be pretty inconsistent. There was one time that I asked a question, but the suspect dodged the question. Grilling them didn't get me the answer I was looking for. Then there was discrepancies like the wife saying she was close to Shylock, but shylock denying that, which didn't come up when grilling. There was quite a few details that never quite lined up, making me hesitant to grill, even when I was pretty sure about it. Then there were some times that you could grill, even when I'm pretty sure no one had any evidence against it.
Mild spoilers ahead. I was a bit disappointed by the outcome, the motive felt pretty weak, and there wasn't really any twist. In the end, I had a hunch, but no solid evidence pinning the murderer. I think you could have done some interesting stuff with Shylock and Goldie's alibi, like they both said that Goldie was at Shylock's apartment, but neither mentioned that Shylock was at his apartment. I had suspected that he was off doing other things, but nope. I'd argue that the big twist is the highlight of most good detective stories, but this game lacked any big 'aha' moments. The chief said that the murderer would lie and cheat their way out, but the culprit didn't really lie that much. The grilling mechanic never even ended up being that useful. Each grill could only give a few sentences of info, and that info was very rarely useful.
Overall, the game was great, but the final culprit wasn't particularly satisfying. The art was amazing, good heckin job with that, and it was cool how you had some choice in what you ask. Despite those few things with the plot, I did enjoy digging up dirt on the different suspects, and finally being able to catch them in a lie. Incredible atmosphere and music, made for a great mystery! Congrats on your game, I hope you can get a few more ratings and comments before the jam closes!