I don't know, but it would shock me to the bone if someone could truly get angry enough at a man like him, to try and hurt him. He knew like we all knew, Grooveshark was never going to last, but it reinforced the point that Napster proved and I think that was always one of the major goals of the project.
That being said, I wish all the best to the Grooveshark family. It's never easy to lose someone like that, it always is hard.