Manhunt: Tracking the Fugitive Killers of Serbian PM Zoran Djindjic

On April 5 this year at Belgrade Higher Court, the trial will start for an attempted murder in a village near Zagreb in Croatia in June 2010.

Both the suspect and the victim, Milos Simovic and Sretko Kalinic, are Serbian citizens and former members of a notorious criminal gang.

At the time of the incident near Zagreb, both Simovic and Kalinic were on the run, wanted for arrest in Serbia for participating in the assassination of Serbian Prime Minister Zoran Djindjic, the anniversary of whose death on March 12, 2003 will be commemorated in Belgrade on Saturday.

The incident led to both men being captured and brought to justice, and they are now serving 30-year prison sentences in Serbia.

Simovic and Kalinic were members of the Zemun Clan, the biggest organised crime group in Serbia in the 1990s and early 2000s. The gang was broken up by police in a large-scale crackdown called Operation Sabre after Djindjic's assassination.

The operation uncovered evidence that led to convictions for Djindjic's killing and resolved other major crimes such as murders, attempted murders and kidnappings by the Zemun Clan.

Twelve people were sentenced to a total of 348 years of prison time for the killing of Djindjic. But at the time that the final verdict was handed down in 2008, five of them were on the run - Simovic and Kalinic, plus Ninoslav Konstantinovic, Vladimir Milisavljevic and Milan Jurisic.

Eighteen years on from Djindjic's murder, only two of these five fugitives have not been caught: Jurisic, who was killed in Madrid in 2009 by his fellow gang members, and Konstantinovic, who is officially missing but is also believed to have been murdered by his own comrades.

Smashing the clan

Zoran...