My NPC script is broken?... title thingy Solution?

It is fine if I have just one but when I have more than one that is when it starts getting weird

they all go after each other and I'm not sure why

Also the first one doesn't move

local Bandit = script.Parent

local Humanoid = script.Parent.Humanoid

local Torso = nil

coolDown = false

animation = Bandit.Animation

Bandit.Torso.Touched:connect(function(Target)
	if coolDown == false then
		if Target.Parent.Humanoid then
					coolDown = true
					Target.Parent.Humanoid.Health = Target.Parent.Humanoid.Health - 7
					
					wait(1)
					coolDown = false
		end
	end
end)

while true do
	for item, child in pairs(game.Workspace:GetChildren()) do
		if child.ClassName == "Model" then
			local Human = child:FindFirstChild("Humanoid")
			if Human ~= nil then
				if child.Name ~= "Mountain Bandit" then
					if Torso ~= nil then
						if (Bandit.Torso.Position - child.Torso.Position).magnitude < 30 then
							Torso = child.Torso
						end
					end
				end 
				if Torso == nil then
					Torso = child.Torso
				end
			end
		end
		if Torso ~= nil then
			Humanoid:MoveTo(Torso.Position, Torso)
		end
	end
	wait(.1)
end