How to I fix my zombies attacking each other?

I have been working for half an hour and I need to figure this out Recently I was playing my game, and someone asked my why the zombies attack each other. So now I am trying to fix it. Every thing I know how to do does not seem to work. Here is the script:

local larm = script.Parent:FindFirstChild("HumanoidRootPart")
local rarm = script.Parent:FindFirstChild("HumanoidRootPart")

function findNearestTorso(pos)
	local list = game.Workspace:children()
	local torso = nil
	local dist = 35
	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
					if temp2:FindFirstChild("Folder") then
						print("He My friend")
					else
						torso = temp
						dist = (temp.Position - pos).magnitude
					end
				end
			end
		end
	end
	return torso
end




while true do
	wait(1)
	local target = findNearestTorso(script.Parent.HumanoidRootPart.Position)
	if target ~= nil then
		script.Parent.Humanoid:MoveTo(target.Position, target)
	end

end

The script below assumes that all zombies are named zombie

local larm = script.Parent:FindFirstChild("HumanoidRootPart")
local rarm = script.Parent:FindFirstChild("HumanoidRootPart")

function findNearestTorso(pos)
    local list = game.Workspace:children()
    local torso = nil
    local dist = 35
    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
                    if temp2:FindFirstChild("Folder") then
                        print("He My friend")
                    else
                        torso = temp
                        dist = (temp.Position - pos).magnitude
                    end
                end
            end
        end
    end
    return torso
end




while true do
    wait(1)
    local target = findNearestTorso(script.Parent.HumanoidRootPart.Position)
    if target ~= nil then
	if target.Name ~= "zombie" then
        script.Parent.Humanoid:MoveTo(target.Position, target)
    end
end
end

Also this probably dosent work. I currently cant test in in studio seeing as im in school XD:D