The ruling on one who is killed during a fight

Question:
From the Arab Republic of Egypt, our brother (F. M. A.) says he resides in Unaizah. He asks in his own way: My young cousin’s daughter came to me and told me that her father had a fight with other people. I went to see what had happened, hoping I might be able to reconcile them. But when I arrived at the scene of the fight, I was met by the other party with beatings. So I began to defend myself, and suddenly my uncle killed one of them without me seeing him when he killed him. Is there any sin on me for that? And will I be a partner with my uncle in the killing? And if I am sinful in that, what should I do to expiate my sin? Please inform us, may Allah reward you.

Answer:
If the situation is as you described in the question, then you owe nothing; because you did not assist in the killing, nor did you order it, but it was done by someone else, without any assistance from you. As for your defending yourself when they beat you, so that you might be safe, this has no connection to the killing, and nothing is required of you in it, if the defense was with the intention of defense, without any excess or injustice from you toward anyone. You owe nothing; because the believer is commanded to defend himself with the easiest means possible, until he is free and safe from the oppressors.
As for your uncle killing a person; this is not connected to you, if you did not assist in it and did not order it, then it does not harm you. Rather, your uncle is the one responsible for it. And Allah is the One to be sought for help. Yes.