I am asking myself the same question. Western media wrote that Croats admitted the crime. New York Times did not find words to comment that spin. There ARE no words for this. It might be that the shooting was done without the knowledge of Croatian forces high command, by a single unit with the lunatic commander, but it was still the responsibility of the Croatian Council of Defense top brass to make it sure that its ranks and files are mentally sane and emotionally stable people, as that is the responsibility of any military command on the planet today.
Modern weapons bring that responsibility.
This is a controlled warfare. UN is there to keep it going, and not to stop it. And military intervention will never happen. Since the end of April Clinton announced it eight times. Now, the US has enough problems with Somalia and Haiti, where it is already involved, to think about Bosnia.