No, the officers statement and witness statements, GSR, angle of the wounds, etc, etc, will all show that.
Not forensic evidence of any kind and irrelevant to casing locations.
...GSR, angle of the wounds, etc, etc, will all show that.
No, those things would not show which rounds were fired first or from what direction they came from. Also irrelevant to casing locations.
You should stick to arguing one trivial point into the ground at a time.