Nothing switched Dave, the Mitchell case merely confirms what Prater told the court. That she lived in rm 20, over the shed, which faced Dorset St.
Prater also noticed the lodging-house light was out, which she believed meant it was past 4 O'clock.
We have a photo of Dorset St. showing the huge lodging-house lights hanging out front.
Room 20 was out front, and overlooked Dorset St.