I also believe JBR was standing when she was hit on the head. There was a tiny bare footprint in the basement.
While the end of the flashlight where the bulb is IS round, try to imagine hitting someone with it. You'd bring it down in an arc and the impact would be with the SIDE edge of that part. NOT straight down in a vertical motion. And the punched-out part of the skull could be rectangular as a result.
While the end of the flashlight where the bulb is IS round, try to imagine hitting someone with it. You'd bring it down in an arc and the impact would be with the SIDE edge of that part. NOT straight down in a vertical motion. And the punched-out part of the skull could be rectangular as a result.