I've posted SketchUp models of the crime scenes before. I have a couple of different layouts for the Dawson's house in Monmouth, IL. This one is incomplete, intended to be a top down model of the house. I say it's incomplete because I haven't added most of the interior doors nor are there any windows. There are other things "wrong" with it, likely, so if you have knowledge let me know.
The back door is in the kitchen, where the stove is sitting. William and Charity Dawson's room was the small room in the north. Georgia Dawson was in the larger room to the south. The front door was found locked but the back door was unlocked. According to reports, those who discovered the bodies walked through the kitchen into the parlor and discovered Georgia in her bedroom first. I post this on the 101st anniversary of the murders in Monmouth.