In Minnesota it would be illegal to do that (shoot someone through your front door).
1. They are not in your home so defense of dwelling doesn't yet exist i.e. prevent a felony in your place of abode.
2. There is a locked door between you and them so the threat of great bodily harm is not yet "immediate". A prosecutor could likely argue that the would-be intruders were simply hunters that were at the wrong home and when the attempt to enter failed, they could have turned and left.
3. The US Supreme Court has ruled that the use of force must always be reasonable for the circumstance, even in the home. I myself wouldn't consider shooting through an exterior door reasonable.
Now, once inside the home, you have every right to lay in wait, in darkness, and ambush the invaders, shooting them until the threat no longer exists. Attempting a citizens arrest or giving away your position by calling out to the attackers would be foolish, especially for a female with a baby.
1. They are not in your home so defense of dwelling doesn't yet exist i.e. prevent a felony in your place of abode.
2. There is a locked door between you and them so the threat of great bodily harm is not yet "immediate". A prosecutor could likely argue that the would-be intruders were simply hunters that were at the wrong home and when the attempt to enter failed, they could have turned and left.
3. The US Supreme Court has ruled that the use of force must always be reasonable for the circumstance, even in the home. I myself wouldn't consider shooting through an exterior door reasonable.
Now, once inside the home, you have every right to lay in wait, in darkness, and ambush the invaders, shooting them until the threat no longer exists. Attempting a citizens arrest or giving away your position by calling out to the attackers would be foolish, especially for a female with a baby.