As I read it, the law does not remove the requirement for appropriate level of force.
Intentionally extreme and silly hypothetical example:
A frail, 100 year old woman weighing no more than 75 pounds stands poised to push the red button marked "Kill Garrette's family." She looks at me, smiles, and says: "I'm going to push the button."
Well, how fast will it take her to push the button--that is, how immediate and severe is the threat, and how likely is it to actually kill your family?
If her finger is on it, or she could press it in a second, you are probably justified in shooting her instantly. If she is merely holding a dull knife and your family is behind a closed door, she is not a real threat and you can't shoot her.
Intentionally extreme and silly hypothetical example:
A frail, 100 year old woman weighing no more than 75 pounds stands poised to push the red button marked "Kill Garrette's family." She looks at me, smiles, and says: "I'm going to push the button."
Well, how fast will it take her to push the button--that is, how immediate and severe is the threat, and how likely is it to actually kill your family?
If her finger is on it, or she could press it in a second, you are probably justified in shooting her instantly. If she is merely holding a dull knife and your family is behind a closed door, she is not a real threat and you can't shoot her.