Why won't my weapon tag a player?

I'm making a sword that once it kills a player he will get points. But I think its not tagging the player correctly because other swords will tag the player and give it points my sword won't.

Here is the script that deals with the tags, damage, etc. Its located in the blade of the sword and its a local script:

wait(0.01)
local CanDamage = true
local plr = game.Players.LocalPlayer

local function tagHumanoid(humanoid, player)
    local creator_tag = Instance.new("ObjectValue")
    creator_tag.Value = player
    creator_tag.Name = "creator"
    creator_tag.Parent = humanoid
end

local function untagHumanoid(humanoid)
    if humanoid ~= nil then
        local tag = humanoid:FindFirstChild("creator")
        if tag ~= nil then
            tag.Parent = nil
        end
    end
end

while true do
    wait(0.01)
    script.Parent.Touched:connect(function(hum) 
        if hum and hum.Parent:FindFirstChild("Humanoid") then 
            if CanDamage == true then
                tagHumanoid(hum, plr)
                CanDamage = false
                hum.Parent.Humanoid:TakeDamage(10) 
                plr.swordlvl.Value = plr.swordlvl.Value + 2
                wait(0.8)
                untagHumanoid(hum)
                CanDamage = true
            end
        end
    end)
end

Here is my point giving script, It looks for a player that died and then searches for the tag so it can give the player points. I don't think there is anything wrong with this one but you might need it. It's located in the workspace and it's a regular script:

game.Players.PlayerAdded:connect(function(p)
	 p.CharacterAdded:connect(function(c) 
		c.Humanoid.Died:connect(function() 
			local cv = c.Humanoid:findFirstChild("creator") 
			if cv then local k = cv.Value 
				if k and  k ~= p then 
					k.leaderstats.Bounty.Value = k.leaderstats.Bounty.Value+500
				end 
			end
		end)
 	end)
 end)

Thank you!