I've said this a hundred times I think. The women could have been followed home from George's. The perps could have watched and waited for the women to get ready for bed, and then invaded the home.
I still am completly convinced that the front porch lady was being truthful about the van she saw. She may have not got the color and other detail right, but that does not mean she did not see a van with suzie crying and driving it. These are the only clues in this case that actually make sense.