if kill capture is hard to do because there is no way of telling you killed someone other than by chat

at least make a death capture so its easier to navigate

i don't really know how it works (correct me if im wrong)
but...
don't you have like a
- ability to moderate/record some part of a game
( files or the screen recording )
- don't be detected as "cheats"
and be able to know when someone died?

(example)* how does cs:go capture work?
is it bc you can see the kill notify in the right upper corner and detect that it's been you that killed?
or does the game send data somewhere that someone got killed and then you read it and can tell that someone died?

Minecraft does not have an anti cheat
and there is a file especially made to access chat even when you leave the world/server

its located in
{ %appdata% }
AppData\Roaming\.minecraft\logs\latest.log

to be honest
i didn't read your policy so i don't know if you can even access those files
but if you can then it can be done this way