According to our training in order to maintain the claim self defense we must be innocent.
Innocent: Free from guilt or fault, harmless in effect or intention. You or the person you are defending must be free of fault, instigation or escalation. You cannot start or condone a fight, then use deadly force and claim self-defense.
Does this mean that if my wife calls a person a jerk, because he almost hit us with his car in a parking lot, that I can’t use deadly force to protect her if that person attempts to kill her? Humans during an escalating conflict are rarely purely innocent. If you started the conflict by calling someone a name, are you prohibited from using deadly force no matter what happens next?