Not sure I buy any theory at this point but backing the idea that if an altercation happened it happened outside.
1) Jen Mccabe testimony included a line to the effect that people inside had nothing to do with what happened outside. It sounded odd when she said it.
2) John's shoe has undone. Cars don't untie shoes, they might take a shoe of, but they don't untie laces Prosecution has highlighted when was fastidious about taking his shoes off in a house. It could be viewed that John's was in the process of entering house, and had untied one shoe, when the incident occurred.
It could have happened outside or in the garage, but John's body was almost certainly not put on the lawn until later as Lucky (a fully independent witness) didn't see a body on the lawn at around 3 am but did later see an SUV blocking his view of where John's body was later found. And of course, none of the endless parade of visitors, from Higgins to Morris saw a body either.
None of witnesses in the Nagel vehicle saw anything happen on the front lawn, and John going out to back yard wouldn't make much sense. It's fenced and gated and there really was no reason for anyone to be out there in the cold. Unfortunately, the online blueprints of the house don't show the garage, so I'm not sure if there was even a door in the garage to get from the front to the back yard without entering the house.
Regarding the shoe, Brian Albert had been a cop for a long time and surely saw/knew of pedestrian accidents where the pedestrian was hit so hard they were knocked out of their shoes. If, as I believe, he staged this to look like a hit and run, taking off a shoe could have part of that staging.
