He was a member of the League of Communists of Yugoslavia and the Socialist Party of Serbia from its founding until his death in 2002.

On 11 April 2002, the day the Law on Cooperation with the Hague Tribunal was passed, he shot himself on the steps of the House of the National Assembly of Serbia in Belgrade.

[1] In his farewell letter given to the Serbian Radical Party MP Filip Stojanović and read by Aleksandar Vučić in front of the media, he stated that he's: "protesting against the members of the puppet regime of the Democratic Opposition of Serbia ... because of the destruction of state with the participation of the biggest enemy of our people Javier Solana, the wanton extermination of the Constitution and laws of this country, the policy of treason and capitulation, the loss of national dignity, the destruction of the economy and the bringing of millions of citizens into the social misery..."[1] On 5 October 2000, during the demonstration against Slobodan Milošević, Stoiljković allegedly ordered mass killing of protesters.

[2] Police allegedly refused to use Rocket-propelled grenade against protesters' buses.

[2] His advocate at the time Branimir Gugl stated: "Stojiljković's suicide is the first and most drastic consequence of the adoption of the Law on Cooperation with the Hague Tribunal.