My condolences. Check out this website forum
http://www.unitedbimmer.com/forums/index.php if you havnt seen it already. They have regional parts of the forums there too. Also keep the lookout for questions on body work and the such.
I also want to add that if this guy was racing then he's probably a show off. If he's a show off im sure he probably posted videos on youtube as well like all those other young punks.
www.youtube.com
Search up Virginia e34 or something similar. You may see an old video of this guy racing other people, if your lucky, you'll be able to see the licence plate. I know its a long shot as well, but im sure you want to try all options.