How To Award Points To Player Who Killed?

I know you have to do something like check if the damage thing kills the player but I don't get it can someone please give me example script that will help thank you

so on the part where it says

hum:TakeDamage(Damage)

i put

if hum.Health - Damage <= 0 then

hum:TakeDamage(Damage)

game.Players.LocalPlayer.leaderstats.Points.Value =

game.Players.LocalPlayer.leaderstats.Points.Value + 100

end

pls tell me for some reason it not work can you tell me how the right way is

game.Players.PlayerAdded:Connect(function(char)
	stats = Instance.new("IntValue")
	stats.Name = "leaderstats"
	stats.Parent = char
	d = Instance.new("IntValue")
	d.Name = "Deaths"
	d.Parent = stats
	d.Value = 0
end)
while wait() do
	for _,p in pairs(game.Players:GetPlayers()) do
		if p.Character.Humanoid.Health == 0 then
			local ls = p:FindFirstChild("leaderstats")
			local dth = ls:FindFirstChild("Deaths")
			dth.Value = dth.Value + 1
		end
	end
end

OMG GUYS I FIXED IT ALL I NEEDED TO DO WAS MAKE IT TO A LOCAL SCRIPT thanks

i think i had same problem always with me lol