The whole chain of events was set off by the first man. There is a very real argument that the two other men shot honestly thought they were confronting an "active shooter" and had no idea of KR's intentions, which the footage shows was self-defense. I don't remember all the names, but IIRC, the first man to attack KR and be shot had recently been released from the hospital after a suicide attempt. It's not a huge leap in logic to say he may have still been suicidal and that's why he engaged in the events that kicked off the shootings. Why else attack a man with a gun who has done nothing to provoke it? Simply having a gun is not provocation. After those first shots, you have a melee situation. People are yelling, probably running, lots of confusion. So it's very possible the other two that were shot thought they were doing something noble. But KR is under no obligation to allow himself to be beat down or hurt, even if their intentions were good. It seems to me, and this is JMO, the real culpable party was the first man to attack KR. But he's dead, so he can't really be held responsible.