@NavyLT (& all other vets)
Thank you for your service to our country!
So, while those of us who carry weapons for self-defense do not have the legal obligation to defend a third party, we cannot be held criminally liable if we use lethal force, provided that the circumstances justify it. I'm not a lawyer, but that is what I interpret the statute to mean.
Obviously, we have the moral obligation to intercede on behalf of another person. What I'm looking at is the legal side of the issue.