Disclaimer: I am not a lawyer. I am not your lawyer. The information below is for your education and entertainment and is not legal advice!
I teach our Introduction to Concealed Carry course roughly two to three times each month. During the classroom portion we go over the laws concerning deadly force. When can we use deadly force? To what extent can we use it and so on. While I briefly cover all of the pertinent information to Colorado's Concealed Handgun Permit holder, that is a subject which you could spend years on.
Andrew Branca has done just that. He is an interesting fellow and quite literally "wrote the book" on The Law of Self Defense. His podcast is an interesting one as well, I would highly suggest you go read/listen to his work.
Massad Ayoob has also written an incredible amount on the law side of things. I would recommend you read his book: Deadly Force
Oh!!! And don’t forget the “Elmer Fudd” myths!!! Kathy Jackson does an excellent job dispelling those absurdities on her blog Cornered Cat.
That said, what do you think about this video? Let me know in the comments.