[1] Gostić was born on 14 August 1978 in Doboj, SR Bosnia and Herzegovina, SFR Yugoslavia.

He attended elementary school in Maglaj but due to the outbreak of war in Bosnia, he didn't graduate.

His grandmother was killed in September 1992 during the bombing of the village by the Army of the Republic of Bosnia and Herzegovina (ARBiH).

In the ARBiH offensive on mount Ozren, the local population retreated from Jovići but Gostić remained with a few soldiers to defend the village.

[2] Gostić was posthumously awarded Republika Srpska's Medal of Merit for the People (Serbian: Медаља заслуге за народ / Medalja zasluge za narod).