It's proof that that Player Y killed Player X but there is no proof showing that it's RDM.
Yes Player Y did killed Player X but it could have been in a raid, or maybe Player X shot first and Player Y defended himself by killing him. This is why we need proof that it's rdm.

It's proof that that Player Y killed Player X but there is no proof showing that it's RDM. Yes Player Y did killed Player X but it could have been in a raid, or maybe Player X shot first and Player Y defended himself by killing him. This is why we need proof that it's rdm.