Andrew Branca posted this at Legal Insurrection.
It is an important issue, and one that is not addressed adequately in the training that a person receives when they get their gun permit.
It is also not a scenario that most people prepare themselves for, and that lack of preparation can cause hesitation or indecision at a crucial moment.
Well worth your time to read.
In the aftermath of another black-on-white racial gang attack (this time at a Kroger market in Memphis TN), Andrew Branca published a follow-up article on the use of deadly force against unarmed assailants.
Once again, Mr. Branca reiterates the 5 elements of self-defense:
And he relates them to the facts of this case (as they are currently known).