Let's look at this legally. If they DO catch this guy, she can sue his pants off as well. She's a drummer, so obviously she makes her living doing what she loves. Now, her music career is seriously in jeopardy if not altogether over. She could easily get some serious money out of this, not that there's a price on having a fully functioning hand, but I think she could at least be compensated close to the million mark. Again, not that that is going to bring back a part of her body, but she should at least be compensated for the rest of her life by him/his family. Yes, his family too. If a family raises a child that throws a bomb at someone ON PURPOSE, they deserve to be punished. We don't know all the facts, so it may actually have been just an accident. But if it happened like we're assessing that it did, she deserves serious compensation.
Isabel, I seriously hope it wasn't your friend. If it was, then maybe you should re-think having him as a friend...