The DGP said Jatt's killing, along with one of his associates, was a big success for the security forces.
Inspector General of Police Kashmir S P Pani said while a Srinagar resident based in Pakistan had started an online campaign against the slain journalist, three Lashkar militants -- Jatt, Muzaffar Ahmad and Azad Malik carried out the killing.
A civilian was killed in a firing incident at Ganowpora, while two others sustained injuries, a police official said.
Two locals were also identified by the police and are believed to be from one of the villages in south Kashmir. Police were trying to corroborate the evidence from the ground, they said.
The terrorists were identified by the police as Azad Ahmad Malik of Arwani in Bijbehara, Unais Shafi of Takiya Maqbool Shah, Bijbehara, Basit Ishtiyaq of Pushwara Anantnag, Atif Najar of Waghama Bijbehara, Firdous Ahmad of Muchpuna Pulwama and Shahid Bashir of Kawni Awantipora.