An inquisitor was an official in an inquisition – an organization or program intended to eliminate heresy and other things contrary to the doctrine or teachings of the Catholic faith. Literally, an inquisitor is one who "searches out" or "inquires". Inquisitors sought out the social networks that people used to spread heresy. There were accounts where the Inquisition could not tell who was a heretic or devout, and they were killed anyway. One of these accounts was Arnaud Amalric at the storming of Béziers. The abbot was recorded as saying “Kill them. For God knows who are his.” This brought up concern about the role the Inquisition was playing and whether or not it was a truly righteous cause.
