Okay. I think maybe (?) I've figured it out...(about the house being "crawl space" but with a basement...):
Check the photo from Zillow of the back of the house (see below). There are three rooms with windows: (Left to Right)--there's a single window room (kitchen--window above sink), a triple window room off the kitchen (eating and living area?), and then the southeast bedroom (double window). There is no back door visible on the face of the rear of the house. There is a little shed-type structure instead, attached to the southwest corner of the house, facing the rear detached garage. I'm wondering that since the search warrant description said LE entered a BACK door, with a vestibule and stairway in the vestibule leading down to a basement, if that little structure was added to the back of the house as a rear entry at some point. So I'm wondering if the basement was, too?
If a later addition, it might've been added or dug from that vestibule structure that faces the rear garage (does it go under that garage, then, which is probably just a slab foundation?) Looking at the window above the kitchen sink in these photos, it also looks like it may have been a rear door opening at some point, then converted to a window, maybe with a remodel of the kitchen. The sink is positioned off-center under window; it looks oddly like the top window of a door to me.
The front of the house is pier and beam, like prewar houses were. Those were usually crawl space (the floor grate in the middle room seems to bear that out, too--though it could be connected to duct work in a basement, if there was one under that room). <pics snipped for space>