Did Kosovo Albanians Harvest Human Organs?

They are some of the gorier allegations to come out of the Kosovo conflict.  In the summer of 1999 as the war was entering its final days it's alleged Kosovo Albanians first kidnapped then transported some 300 people, namely Serbs, to Albania where their organs were "harvested" for sale abroad. 

The chilling allegations briefly grabbed headlines in 2008 when former chief UN prosecutor Carla Del Ponte published lots of circumstantial evidence in her book, "The Hunt."  Now, Serb investigators say they have witnesses to some of the gruesome deeds and further information on who some of the victims may have been.