You're just wrong about that. But I'll grant you that the KLA killed many innocent people. So what? Does that give Milosevic the right to do the same? Both sides were barbaric, and both deserve to be punished.
If this happened in any country the government would react probably more aggressively than Milosevic did. Imagine if it happened in America!? The only reason that the KLA has been glamorised is that it served Nato's purpose at the time. The Nato govts before that point were very clear about the KLA and what it was. It is now running most of the drug, people and gun-running routes through Europe (via Kosovo which is no longer multi-ethnic or safe to live for anyone now).
As for posting tales like the one above, some may have been true but most were not. The KLA was acting as Nato's land army and the propaganda was massive. You haven't even provided a link to your specific 'case'. If it's just from the media or hearsay testimony then it means nothing.