Super enjoyable entry, loved solving this one. The mystery was very effectively written, and the interactions were nicely polished. Had a similar initial idea of document game myself actually for the Game Jam. I couldn't get it work so did something completely different in the end, but glad someone managed to execute this structure in such an enjoyable manner.
Only thing I'd suggest is to make the workable space a little bit larger so players can fully organise evidence, but that's pretty tiny issue and managed to solve it regardless.