How is it an old rule?
2.1 Random Death Match
Any player without valid reasoning cannot kill another player, appropriate reasoning to kill the player is needed.

His reason at the time was for him killing an innocent who had a KOS placed on them by someone else

How is it an old rule? 2.1 Random Death Match Any player without valid reasoning cannot kill another player, appropriate reasoning to kill the player is needed. His reason at the time was for him killing an innocent who had a KOS placed on them by someone else