This is what I'm a little unclear on.
"Self-defense is designed to protect people who don’t start trouble. It fundamentally doesn’t apply to 'aggressors.'
The most basic definition of 'aggressor' would include someone who illegally attacks another. Some state definitions include under the 'aggressor' umbrella a person who threatens to attack another or intentionally provokes a fight.
But the aggressor limitation to self-defense doesn’t mean that you can never use force if you did anything to contribute to a fight. If one man insults the fit of another’s suit, and the insulted party retrieves a revolver and points it as if to shoot the insulter, the insulter is likely legally justified in using deadly force to prevent the shot."
Self-defense can be used to justify the use of force against another when the use of such force was reasonably necessary to protect oneself.
www.lawyers.com
I think self-defense is pretty easy to define, but "intentionally provoking a fight" isn't so clear to me.
I think it could have been argued that George Zimmerman was "intentionally provoking a fight", but that seems gray at best to me.