Exactly. You can discuss why they're there and why they're carrying a weapon, but absent prior intent to cause criminal harm, it's really not relevant to the case once they make a good faith effort to break contact. By the same token, I can't shoot a fleeing felon in the back once they've ceased committing said felony and no longer pose a reasonably articulable threat.Sorta reminds me of a recent case of a young man set upon by rioters, killed one and shot a skateboarder in the arm. Charged with murder but found by jury to be self defense.