Roblox find out culprit exploiter script

for i,plr in pairs(game.Players:GetPlayers()) do
	if plr.Character:FindFirstChild("SelectionBox") then
		plr.Character.SelectionBox:Destroy()
	end
	if plr.Character:FindFirstChild("HumanoidRootPart") then
		if plr.Character.HumanoidRootPart:FindFirstChild("BillboardGui") then
			plr.Character.HumanoidRootPart.BillboardGui:Destroy()
		end
	end
end

for i,plr in pairs(game.Players:GetPlayers()) do
	local selbox = Instance.new("SelectionBox")
	selbox.Adornee = plr.Character
	selbox.Parent = plr.Character
	local bill = Instance.new("BillboardGui")
	bill.Size = UDim2.new(5,0,2,0)
	bill.StudsOffset = Vector3.new(0,4,0)
	bill.LightInfluence = 0
	local lab = Instance.new("TextLabel")
	lab.Size = UDim2.new(1,0,1,0)
	lab.Text = plr.Name
	lab.TextScaled = true
	lab.Parent = bill
	bill.Parent = plr.Character.HumanoidRootPart
end