How can i detect and add kills to the player that killed the "NCP"?

So i am working on my game and i got stuck on this problem. So basically i have a simple leaderboard script and i want to detect and add kills to the player that killed a "NCP".

local DataStoreService = game:GetService("DataStoreService")
local DataStore = DataStoreService:GetDataStore("MoneyStats") -- Change this with a different name.

game.Players.PlayerAdded:Connect(function(Player)
	local Leaderstats = Instance.new("Folder", Player)
	Leaderstats.Name = "leaderstats"
	Leaderstats.Parent = Player
	local Money= Instance.new("IntValue", Leaderstats)
	Money.Name = "Money" -- Change "Money" with your currency.
	Money.Value = 0
	local Kills= Instance.new("IntValue", Leaderstats)
	Kills.Name = "Kills" -- Change "Kills" with your currency.
	Kills.Value = 0

	local Data = DataStore:GetAsync(Player.UserId)
	if Data then
		Money.Value = Data.Money -- Change "Money" with your currency.
		Kills.Value = Data.Kills -- Change "Kills" with your currency.
	end
end)

game.Players.PlayerRemoving:Connect(function(Player)
	DataStore:SetAsync(Player.UserId, {
		["Money"] = Player.leaderstats.Money.Value; -- Change "Money" with your currency.
		["Kills"] = Player.leaderstats.Kills.Value; -- Change "Kills" with your currency.
	})
end)

This is the Leaderboard scrip just in case.

Note: I am using the official weapon kit from roblox for the detecting part