NPC follows humanoid named zombie how?

So my npc follows every humanoid in existence and i will have it to follow humanoids named zombie

function findNearestTorso(pos)
	local list = game.Workspace:GetChildren()
	local torso = nil
	local dist = 10000
	local temp = nil
	local human = nil
	local temp2 = nil
	for x = 1, #list do
		temp2 = list[x]
		if (temp2.className == "Model") and (temp2 ~= script.Parent) then
			temp = temp2:findFirstChild("HumanoidRootPart")
			human = temp2:findFirstChild("Humanoid")
			if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then
				if (temp.Position - pos).magnitude < dist then
					torso = temp
					dist = (temp.Position - pos).magnitude
				end
			end
		end
	end
	return torso
end

while true do
	wait(0.1)
	local target = findNearestTorso(script.Parent.HumanoidRootPart.Position)
	if target ~= nil then
		script.Parent.Humanoid:MoveTo(target.Position, target)
	end
end

function findNearestTorso(pos) local list = game.Workspace:GetChildren() local torso = nil local dist = 10000 local temp = nil local human = nil local temp2 = nil for x = 1, #list do temp2 = list[x] if (temp2.className == "Model") and (temp2 ~= script.Parent) then temp = temp2:findFirstChild("HumanoidRootPart") human = temp2:findFirstChild("Humanoid") if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then if (temp.Position - pos).magnitude < dist then torso = temp dist = (temp.Position - pos).magnitude end end end end return torso end

while true do
    wait(0.1)
local target = workspace.zombie.Torso --Models doesnt have a position so it uses torso to find  
if target ~= nil then
	        script.Parent.Humanoid:MoveTo(target.Position, target)
    end
end

--https://www.youtube.com/watch?v=PaNio-_Rvp0 a video for demonstartion