Yes, but we can track the gun crimes committed by those who are licensed to carry. I know in Florida, the report for 2010 was ridiculously low.
In 2010, number of:
Total number of permit holders: 786884.
Permit holders that committed a crime resulting in revocation of permit: 520.
Percentage of permit holders committing a crime resulting in revocation of permit: 0.0007.
How many of those not charged shootings would have been charged in a duty to retreat state? FL has one of the best castle doctrine laws right?
We should probably look at the number of shooting incidents, not just crimes.
I would love to do that. Unfortunately, the state doesn't publish that statistic. As far as your first question, I don't know. However, my personal belief is that if you are attacking me and I feel my life is in danger, shoot to kill is the only way. When I was in CA, the law there was that you had to fire one warning shot, then, if that didn't work, you were only allowed to shoot the attacker once. If you shot twice, you could be charged with felony assault with a deadly weapon. I'm sorry, but if you are attacking me, I'm going to kill you. I don't want to shoot you in the arm and risk you getting up and killing me or my family.