So I was in the car a lot yesterday and spent the day researching houses / builders and layouts in the area. I came upon four homes that had front window layouts nearly identical to the Closs home. I also looked through any photos I could find of the actual inside of the Closs home (from the cabinet at the door to Facebook photos that show the kitchen) and the inside of those houses with identical front windows.
I think those that thought this was a modular or pre fabricated home are correct. Very popular in the area and most of them follow nearly the same layout.
Based on that information, window placement, etc. I came up with a proposed layout. (Attached) Please note; my scale isn't perfect and not all things are accounted for (ie; closets and furniture layout is a guess). My software isn't made to do structural layout (more interior design).
I know some people have questioned why layout matters. At this point anything would help and it was time I had to burn either way. I think it makes a difference in considering how long the perp was in the house and Jayme's location at the time. Possible entry / exit points. It also could give us some insight as to if there is one or two perps. Where James and Denise were, etc.
After making this floor plan I came up with the following theory of how things went down that night.
James is in the kitchen/dining area awake. Perp would have been able to easily determine his movement from the outside based on the large windows and patio. If they didn't see Denise in the kitchen / dining area ... they knew she was likely either in the master or the living room.
Storm the front door, startle James who comes toward the door. He's taken down right there. I marked where with flowers (sorry, my software has limited options that seem appropriate).
The perp could then push open that front door and with less than a step or two, catch Denise coming out of the bedroom or running from the living room to the bathroom to barricade herself. They would have a clear shot to take her down in the bathroom. Marked by the second set of flowers.
My only question now is when / how / what door was Jayme taken out of the house?
Oh and ...I just gasped as I was theorizing.
This also explains the split in the dining chair.