Weld in touched function is linking lives of player and victim?

	local w = Instance.new("Weld")
	w.Part0 = x	
	w.Part1 = hit.Parent.UpperTorso
	w.Parent = x
	debris:AddItem(w,10)

I have this code in a touched function that does damage (damage emphasized for convenience) and for some reason whenever its used to kill or when the victim dies the user also dies

https://gyazo.com/2b9b847aaebf32c4dadd9ee2e211a9b5

(The weld is used to grab the player and hold him there, hence the use of a weld)

		local x = Instance.new("Part")
		x.CanCollide = false
		x.Massless = true
		x.Transparency = 1
		x.Parent = workspace
		debris:AddItem(x,10)
		
		local hand = Instance.new("Weld")
		hand.Part0 = rib.RightHand
		hand.Part1 = x
		hand.Parent = x
		
		x.Touched:connect(function(hit)
			if hit.Parent ~= nil and hit.Parent:FindFirstChild("Humanoid") ~= nil and hit.Parent:FindFirstChild("Humanoid") ~= pchar.Humanoid and debounce == false then	
				debounce = true
				
				if hit.Parent.Humanoid.Health > 10 then
					hit.Parent.Humanoid:TakeDamage(100)
				elseif hit.Parent.Humanoid.Health <= 10 then
					hit.Parent.Humanoid:TakeDamage(hit.Parent.Humanoid.Health-1)
				end
				
				local w = Instance.new("Weld")
				w.Part0 = x
				w.Part1 = hit.Parent.UpperTorso
				w.Parent = x
				debris:AddItem(w,10)
				
								
				for i,v in pairs(workspace:GetChildren()) do
					if v:IsA("Model") and v:FindFirstChild("Humanoid") ~= nil and v:FindFirstChild("Humanoid") ~= pchar.Humanoid and hit.Parent.Name == v.Name then
						for i, object in pairs(v:GetChildren()) do
							if object:IsA("BasePart") then
								object.Massless = true
								object.CanCollide = false
							end
						end
					end
				end
				
				wait(10)
				debounce = false
				
			end
		end)