Headshot script

[FastDriver]

HEllo guys i got an problem with an headshot script could anyone help me and watch what is wrong?

addEvent "onPlayerHeadshot" 
  
addEventHandler("onPlayerDamage", getRootElement(), 
    function (attacker, weapon, bodypart, loss) 
        if not attacker then 
            return 
        end 
        if getElementType(attacker) ~= "player" then 
            return 
        end 
        if getPlayerTeam(attacker) then 
            if getTeamName(getPlayerTeam(attacker)) == "Anonymous" then 
    if getElementType(source) == "player" then 
        if bodypart == 9 then 
            local result = triggerEvent("onPlayerHeadshot", source, attacker, weapon, loss) 
            if result == true then 
                killPed(source, attacker, weapon, bodypart) 
            end 
        end 
    end 
) 

[IIYAMA]

why triggerEvent ?

why are you missing 2 end's?