Zombie Proof

[GerardWay]

Hey, so I have this colshape, but whenever a zombie enters it, they don't die.

local safeZone = createColCuboid (95.974617004395, 1751.3895263672, 17.640625, 255, 380, 255) 
local safeArea = createRadarArea ( 95.974617004395, 1751.3895263672, 255, 380, 255, 0, 0, 120) 
setRadarAreaFlashing(safeArea, true) 
setElementData (safeArea,"zombieProof", true) 

[Max+]

local safeZone = createColCuboid (95.974617004395, 1751.3895263672, 17.640625, 255, 380, 255) 
local safeArea = createRadarArea ( 95.974617004395, 1751.3895263672, 255, 380, 255, 0, 0, 120) 
addEventHandler ( "onColShapeHit", safeZone, 
                function ( hitElement ) 
                if getElementType( hitElement ) == "ped" then 
                setRadarAreaFlashing(safeArea, true) 
                setElementData (safeZone,"zombieProof", true) 
                killPed(hitElement) 
             end 
         end 
        )