W-well, I guess not... but I don't think running into it in blind anger will help either!
I mean, it's probably just one person who held onto a grudge or something, but maybe some of the others you went to school with might know something even if they're not involved themselves.

Like, maybe they know if anyone specifically went on to form a company or something? I mean you might even be able to search their names online and see if anything comes up.