Get player's killer onPlayerDeath

So, how do I get the player's name or Player object with onPlayerDeath?
This seemed too short so I'm just adding this random text, and you just wasted 5 seconds of your life reading it. Sorry.

 

Do you mean the player that died or the player that killed the one who died?

 

PHP:

public function onDeath(PlayerDeathEvent $event) {
        $cause = $event->getPlayer()->getLastDamageCause();
        if ($cause instanceof EntityDamageByEntityEvent and $cause->getDamager() instanceof Player) {
            $killer = $cause->getDamager();
        }
    }

 

Smart, hadn't though of that
Thx