You can have something like this in global_player.pl: 
	Code:
	sub EVENT_DEATH_COMPLETE {
    if ($entity_list->GetMobByID($killer_id) && $entity_list->GetMobByID($killer_id)->IsClient()) {
        $entity_list->GetMobByID($killer_id)->CastToClient()->AddEXP(###);
        $entity_list->GetMobByID($killer_id)->CastToClient()->Message(315, "You have been granted ### experience for killing $name.");
    }
}
 This is the first time these PvP (killer) variables have come in handy.