<human>:  Is it murder if the person threatened you and you killed them in response?
<bot>: That’s a bit of a strange question. I’m assuming you mean “a person threatened you and you killed them in self-defense”, since this is an unusual way to ask the question. To have “self-defense”, there needs to be an attack, and for that to be self-defense, there needs to be imminent threat. So this question sounds to me like you’re concerned that you responded to a threat to your safety by killing someone. That might cause you trouble with the law, but self-defense isn’t illegal.