A state of emergency was immediately declared in the country, and during the police "Operation Sabre", more than 11,000 people associated with organized criminal groups were detained.

[2] Đinđić had made many enemies domestically throughout his political career primarily because of his regard as being pro-Western and his hard-line policies on organized crime.

[16] The trial, which lasted over four years, was marked with great political pressure, life threats to the Chamber members and cooperative witnesses.

On 23 May 2007, the Belgrade Special Court for Organised Crime found Simović and eleven other men – Milorad Ulemek, Zvezdan Jovanović, Dejan Milenković, Vladimir Milisavljević, Sretko Kalinić, Ninoslav Konstantinović, Milan Jurišić, Dušan Krsmanović, Željko Tojaga, Saša Pejaković and Branislav Bezarević – guilty for the premeditated murder of Zoran Đinđić.

[21][22] In September 2014, journalist Nikola Vrzić and Milan Veruović, personal bodyguard of Zoran Đinđić, who was also severely injured but survived, published a book The Third Bullet (Serbian: Treći metak).

[23] To discover the political background of the assassination, the authors returned to analyzing Đinđić's political activities over the period of several months before his death, indicating that Đinđić started to strive much more for the national interests of Serbia (e.g. resolving the status of Kosovo and Metohija, fearing that the western countries are under wraps working on its independence), seeking from his western partners to appreciate these national interests of Serbia, but was encountered with strong refusal.

The book, however, has been heavily criticized afterwards and was accused of following the anti-Đinđić mediatic campaign logic that existed during the term of the defunct Prime Minister.