The hint system says I need to click briefcase, but it won’t let me interact with it. Seems to be the only thing I missed. Bug?

Same isssue for me as previous posters. I'm clicking all over the place on the briefcase, can't activate it.

I don't think I figured it out, but ended up back at the police station and I cannot do anything to proceed further. Darn! As fun at it has been, I'm not wanting to do it all over again.

I'm at the end of act 1, and I'm supposed to enter everything in, but none of the clues say anything about time of death. Where do I find that?

'Badge and Gun' and 'Dot your Is and cross your Ts' I still missed them after my second round. I tried to shot every targets in the shooting case, but nothing happened. Is there some hidden meaning in the description? Totally have no idea...  By the way, I love the game both the art style and gameplay so much. Hope to see more games like this :)...