You are really struggling with this concept. No, I did not say I would use deadly force if threatened. In civilized parts of the United States, a threat in itself is not justification to use deadly force, unless it is so convincing that the person being threatened actually fears for his life and can not flee. Following the victim inside and shooting him again is murder, or didn't you read the story? I hope in the fullness of time, courts will strike down "stand your ground" laws as legalized murder, but in any case, they don't apply in Colorado.