A. Even though a person is justified under this chapter in threatening or using physical force or deadly physical force against another, if in doing so such person recklessly injures or kills an innocent third person, the justification afforded by this chapter is unavailable in a prosecution for the reckless injury or killing of the innocent third person.
Keep in mind that under Arizona Law, you may very well be justified in threatening or using physical or deadly force against someone threatening you, but if you take action such as using a firearm and you recklessly injure or kill an innocent 3rd person, there is no justification or protection under Arizona statutes.