In Minnesota in order to get a carry permit you have to pass certification classes. The officer that trained us works for the Minneapolis PD and trains the PD as his full time job.

He hammered us pretty hard with the law in Minnesota stating that you or someone else must be under the threat of imminent death before you can legally use your weapon. They even showed a series of short videos with a quiz; Could You or Couldn't You fire in this situation?

In almost every case (even the woman being raped) the answer was no.

He then dropped the other shoe. Even if it is clear that you had just cause to shoot and kill the bad guy because the threat of imminent death was indisputible, the deceased's family will hound you with civil suits for years and between them and the attorney's fees you'll lose everything. You will be wiped out for defending a life because the scum bag probably has scum bags for relatives.

There's no clean end to an encounter like that.

One other tip: If you ever find yourself in that situation, your claim always must be, I shot to STOP him. You never, ever meant to kill him, no matter what the situation. You only meant to STOP him.