How to apply WalkSpeed to players within a table?

I wrote a LocalScript for a tool that sets people's WalkSpeed within 30 studs to 1, and puts it back to 16 after 8 seconds. I'm making it add affected players into a table, so it can reset their walkspeed back to 16 again regardless of how far away they are. However, I'm not sure how to do this. Here is the script:

hand = script.Parent
plrs = {}
db = true

script.Parent.Parent.Activated:connect(function()
	if db == true then
		db = false
		pos = game.Players.LocalPlayer.Character.Torso.CFrame
		sph = Instance.new("Part")
		sph.Name = "TurtleBall"
		sph.Parent = game.Workspace
		sph.Shape = "Ball"
		sph.CFrame = pos
		sph.BrickColor = BrickColor.new("Shamrock")
		sph.CanCollide = false
		sph.Transparency = 0.4
		sph.Anchored = true
		sph.TopSurface = "Smooth"
		sph.BottomSurface = "Smooth"
		sph.Size = Vector3.new(3,3,3)
		for i = 1,9 do
			sph.Size = sph.Size + Vector3.new(3,3,3)
			sph.CFrame = pos
			wait(0.1)
		end
		local g = game.Players:GetChildren()
			for i = 1,#g do
				if (g[i].Character.Torso.Position-script.Parent.Position).magnitude < 30 and g[i].Name ~= game.Players.LocalPlayer.Name then
					table.insert(plrs,g[i].Name)
					g[i].Character.Humanoid.WalkSpeed = 1
				end
				print(plrs)
			wait(8)
				game.Players[table.concat(plrs)].Character.Humanoid.WalkSpeed = 16
				table.remove(plrs)
				end
			end
			sph:Destroy()
			wait(8)
			db = true
end)

It is line 34 I need help with.