I don't buy it either, Richard, that supposedly every randomly picked individual could be programmed to become a cold-blooded murderer and/or rapist. That sounds like an easy excuse, a way too easy excuse.
I do assume and believe that demonic possession could cause someone of an intrinsicly fairly innocent nature do certain lugubrous and violent acts. That by all means remains still quite a blurred and not a very tangible realm. I assume that demonic forces can easier inflict certain behaviour and acts with certain specific people who are somehow, for some reason more susceptible to that than other people.
Stewart Swerdlow truly never got out of the mentioned violent, pityless and ruthless behaviour that he claims came into being by means of programming. Stewart in general explains (away) a lot with the term 'programming', I have been noticing. It's one of his fillers.
It must certainly not have been the easiest and most thankful job you have taken on by exposing the Swerdlows.