Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: Oliver Ivanovic  a prominent Kosovo Serb politician  was killed in a brazen drive-by shooting on Tuesday that could reignite ethnic tensions in the region.
An EU-backed Kosovo court sentenced  Ivanovic  in 2015 to a nine-year jail term after it found him guilty of encouraging the killings of captured ethnic Albanian civilians in Kosovska Mitrovica in April 1999.
In February last year  a Pristina appeals court quashed the sentence and ordered a retrial for  Ivanovic   who had been in detention since his arrest in January 2014 until the acquittal.
"Serbs are more afraid of Serbs than Albanians "  Ivanovic  -- a rare Kosovo Serb in that  he  spoke Albanian -- said at the time. "Serb people are afraid to raise their voice" against Belgrade's policy.
A former Serbian state secretary for Kosovo   Ivanovic  was a key interlocutor with NATO  the United Nations and later the EU after the war and was seen as backing dialogue with Kosovo's ethnic Albanians.

Prominent Kosovo Serb Politician Oliver Ivanovic Assassinated