Food for thought…
The culprit is either:
-someone with an alibi for the murders
-someone without an alibi
-one of the victims themselves
-someone not even on the alibi radar (Kinzo, Kyrie, that guy from Rosa’s backstory, etc. literally any person that’s not even supposed to be around)
Mostly important cause… why even shoot the gun?
If you have no alibi anyway, there doesn’t seem to be any reason to do that.
Same if you’re a complete phantom.
Making people second-guess Natsuhi’s time of death didn’t really seem to accomplish much.
For the victims, Natsuhi couldn’t have moved the gun back.
Jessica could have fired it, but then things get kind of weird. (how did she strangle herself/break the window)
Meaning… people with alibi seem to be the only potential culprits with a decent enough reason to have that gun go off somewhere.
At least, unless there’s some reasoning that I’m not seeing, or the scheme for framing Krauss was so c o m p l e x that there are just weird parts like this. Of course, people with alibi are also the only ones that couldn’t possibly have fired the gun, so good times.