Tailgunner, there is nothing in the article that you link to that says a "formal" request has been made!
When US makes request, he will be tried in Serbia.
if he is guilty, he will get in jail, if not- not
Anyway, in the mess senator Charles Schumer (D-NY) reqested that Serbi amust extradicte Kovacevic.
Senator Charles Schumer is known to be Albanian lobbyst:
http://www.aacl.com/AACL_JUN2005/DioGuardi-politics_and_religion.htm