PAPI Placeholders for Killer (including to the already existing victim set as default)

[EpicE870]

What feature do you want to see added?

for example, this

• '%luckperms_prefix%%tab_customtabname% blew up! They were playing around with an end-crystal!'
  Correcly shows the prefix for the player and the players custom name
  but if it just so happens that the player dies from some other player, all the placeholders act as if it was the victim only so there isn't a real way to output some placeholder for the killer