the bullet, which created a hole in the window of a nearby gift shop. The perpetrator's gun subsequently jammed, enabling Pukanić to pull his legally-owned Glock 17 out of his bag. Pukanić fired a warning shot, causing the perpetrator to flee the crime scene. A facial composite of the perpetrator, who was unmasked and wore a dark knitted cap, was publicly released five days after the attack. The police suspected the attempt to be a warning to Pukanić, intended to discourage him from certain activities. Police protection was assigned to Pukanić immediately following the event. However, it was lifted on August 1, 2008, just over two and a half months before the October 23 bombing, as there were no further threats in the months following the assassination attempt. Police investigation The police released information that the possible assassin is Sretko Kalinić, a wanted executioner of the recently dissolved Zemun clan of Serbian mafia, who was in January 2008 sentenced in absentia to 40 years of prison in Serbia for eight assassinations and involvement in numerous other criminal activities including two abductions. His current whereabouts remain unknown, aside from having been spotted in Croatia the week before the bombing. There are reports that he was recently involved in other murders in Bosnia and Herzegovina. The police have also talked to Mirjana Pukanić, while Nacional editorial board refuted a claim that they plan to accuse her for the assassination. On October 27, Croatian police arrested many former police officers and members of the army in a countrywide action, who are suspected to be capable of producing such professional explosive device that was used in the bombing. On October 29, Croatian police arrested 10 people in direct connection to the murder whom the police official Krunoslav Borovec described as "dangerous members of a criminal milieu." Serbian mafia On October 30 police arrested five suspects aligned with the Serbian mobster Sreten "Joca Amsterdam" Jocić for Pukanić's assassination. The suspects were Robert and Luka Matanić, Amir Mafalani, Slobodan "Boban" Đurović and Milenko "Mića" Kuzmanović. Mafalani was arrested in his apartment and the other four were arrested on the Bajakovo border crossing, trying to escape Croatia. The day before the All Saints Day police filed all points bulletins and subsequently arrested two known Serbian mobsters and criminals, Bojan "Bajone" Gudurić and Željko "Letač" Milovanović. Milovanović is known in Serbia for robbing a post office in Beočin