Gun Control & RKBA

it is a use of force law. UK has had SYG before Florida. Come to think of it, I can't think of a country outside of the US that has duty to retreat.
Davis was murdered, it has nothing to do with SYG. Duty to retreat is uniquely American.
http://stthomaslawreview.org/articles/v27/1/prince.pdf

An emotional appeal from a mother of a murdered son tugs at the heart strings, but should not be considered when it comes to making public policy, especially since this op ed contains several factual errors. SYG only removes the duty to retreat. It does not encourage people to "shoot first and ask questions later".
Once again, the biggest problems with SYG is politicians and the media's inability or unwillingness to explain it honestly and competently.