Percy.
It doesn't make it any less the truth regardless of how difficult it is to hear.
You know I had a brother, Percy. You know he'd have been in the twins' year. Probably their dorm-mate. And he died because a muggle was an idiot unchecked in ways we weren't going to understand. And that is the most gutting thing you can imagine. When people say it gets easier, it's really just that it's easier to cover up. I'm still angry, I'm still hurt, and so many people seem to pass this kind of thing off as a once off accident. No one wanted to fix anything, or they couldn't. And that is definitely a slap in the face to my brother's memory. That he wasn't even good enough to warrant more than 'tragic accident'. I needed to do something, and I can sit here and try to explain the emotions involved until I'm blue in the face and you're never going to get it.