Thanks for explaining,
@Mahoney-Wright , I thought maybe I didn't make it clear that I was talking about risk levels for a particular age group, one that Sandra is in.
Yes, in general most victims are killed by someone who is an intimate, followed by those who are friends/acquaintances, followed by strangers as the most rare category of all (though it definitely happens). I think most of us know that here. It certainly is hard to make logical inferences about what happened to Sandra when we truly don't know the circumstances under which she left the home.