What Happened to Mary Jean in February?

Brett: The thing that stuck out in the first story in February was when he told her to run and that he shows up and asks her a ridiculous question why did you run? That is something incredibly sadistic. We see this now in modern times and we see copycats of people who've watched a lot of movies where there's the hunter going after their prey. But back in 1946 this was I mean of course there were murders of course you know there were terrible things that happened back in the 40s but this type of joy from being able to torture someone and inflict immense amounts of fear in them as you are killing them and raping them is not something that you see across murders