Yes! You bring up a good point of why, if Karen had hit John right there outside the house, why didn't anybody hear or see anything out the window? Lots of the people at the house had good reasons to be looking outside: is it snowing yet? is my ride here yet? is my friend John here yet? I think John might have gone toward the backyard. He may have heard BA, CA, BH out in the yard with the dog, maybe having a smoke, and John came walking through the gate unexpectedly. What might a GSD do when a stranger comes on her property like that? It's not hard to imagine hot tempers stemming from a dog attack. The men could have retreated into the basement gym. That would jive with the steps from John's watch data by going down bulkhead stairs. Inside, it could've been a complete accident, he may have fallen on a dumbbell or hit his head on something very hard. Or, someone might've hurt him. They may have kicked him out of the house or John might've stumbled outside himself, eventually collapsing on the lawn.