[Multiplayer] Link a Variable to a Player

How i can make this event works individually for each player? Actually there is two scores in my game, an individually score for each player and a community score based on who made more kills in the game, now how i can make this event works like that? because at moment doesnt works well. I already disabled the synchronization of the Variable"Individual kills" but i still dont know how to link a kill to a player.