The mother isn’t going to turn out to be the sharpest tool amongst those in the shed either. And it would be a mistake to think of this as a one-of-a-kind activity as well.
Terrible - and the sex crimes are reinforced by disappearances and deaths. I wonder if violence and murder has also been going on for several generations.
Apparently social welfare authorities were notified again and again, but did nothing. There may be more, still, to this story. I wonder if some members of the “ring” are well placed people of influence.