Perhaps there isn't a link between any of the victims? Maybe each of them were chosen by pure happenstance.

[which, when he thinks about that in relation to Monika, kind of makes his blood boil. but he keeps that anger under wraps. . . for now]

At any rate, with knowledge that the Editor role exists, I believe we should be more specific in our questioning during trials.

"How many killers do we have this week, including those who would not be considered guilty?"