So, I am wondering if the zombie leader outside the tower is Randy:
  1. Was he a zombie already when he and Michael met?
  2. Did he helped Michael escape?
  3. Does he retain knowledge of his former humanity?
  4. Are the zombie's surrounding the Colony to attack or defend (is Ink on his way down)?
  5. If there are "good" zombie leaders; could that even matter since left to their own devices they kill and turn humans.