Beautiful and sad and cruel. Your writing is lyrical and smooth and yet I can see the shifts in tone and style, from conversational and casual to factual to a clinical, dry tone. That paragraph about the method of death sounds like it was from a coroner's report. It's a smooth transition from being more personal to being emotionally distant, but then you abruptly shift back to a personal tone again, like you're shaking the memory away.

You did that well here - understating the deep emotions while letting your physical descriptions illustrate the depth of the speaker's feelings. I can feel the horror, too, without you ever having to state it.

There isn't really anything I would want to have changed in your piece, although I do wonder at what made the speaker's brother fly into a killing rage. But if you had put that in the story, I don't think the story would've flowed as well.

Just one correction, unless you meant for it to be this way: The "a" should be a capital "A" at the beginning of the last sentence in the third paragraph. Or the period between "friend" and "a friend" should be a comma instead.

I loved this piece.