How would I be able to give player a kill on leaderboard with this script>?

I got this nifty little script for my tool, and modified it a little to match my preferences. Only problem with the gear is that it doesn't give the player a kill after ending another players life. Any ideas? I tested it with an NPC, and 2 players, but doesn't bump the kill count. Thank you!

	local tool = script.Parent

	local canDamage = false

	local function onTouch(otherPart)

	local humanoid = otherPart.Parent:FindFirstChild("Humanoid")
	
	if not humanoid then 
		return 
	end
	if humanoid.Parent ~= tool.Parent and canDamage then 
			
			humanoid:TakeDamage(100)
	else
		return
	end
	canDamage = false
	end

	local RESET_SECONDS = .8
	local isTouched = false  -- Declare debounce variable

	local function slash()
	
	if not isTouched then  -- Check that debounce variable is not true
		isTouched = true  -- Set variable to true

		local str = Instance.new("StringValue")
		str.Name = "toolanim"
		str.Value = "Slash" 
		str.Parent = tool
		canDamage = true

		wait(RESET_SECONDS)  -- Wait for reset time duration
		isTouched = false  -- Reset variable to false
		print("slash")

		end

	end

	tool.Activated:Connect(slash)
	tool.Handle.Touched:Connect(onTouch)

just add a check for leaderstats and increase the value

local plr = game.Players:GetPlayerFromCharacter(tool.Parent) or tool.Parent.Parent -- if tool is equipped parent will be character, if tool is not equipped parent will be backpack and backpack is parented to the player

if plr then
	local stats = plr:FindFirstChild("leaderstats")
	if stats then
		local kills = stats.Kills -- or whatever the kills are
		kills.Value += 1
	end
end

BTW this would be in the part of your script after the humanoid took 100 Damage