I tried making a case out of suffering mental damage when I got jumped some 9 years ago, but there was nothing I could as the people who did it were never caught. My depression went through the roof, and I developed a bad anxiety disorder after it happened. It got so bad that I had nervous breakdowns walking alone at night. I also suffered permanant nerve damage the right side of my nose and right side of my lip. I couldn't work for years either.

But, if there is no one to sue, you can't go too far.