No.
But if the "mass grave" turns out to be the dead buried as a result of a battle and not a Serbian "war crime", you'll never hear about it from the BBC1, BBC2, BBC America or Britain's Channel 4.
Try paying attention.
If they all turn out to have their hands bound behind their backs and bullets in the backs of their heads you’d claim they were “battle casualties” anyway. I’m no fan of Albanians or the BBC but the usual excuses from Serb apologists wear a little thin.