The investigative team found that Nurkadilov first shot himself twice in the chest before putting the gun to his head and firing a bullet into his brain.
Interfax quoted an unnamed Kazakh law-enforcement official as saying that investigators concluded that the main reason why Nurkadilov shot himself related to family conflict.
Nurkadilov was found dead on 12 November. The For a Just Kazakhstan bloc has declared that Nurkadilov's death "without any doubt can be qualified as political."
A former mayor of Almaty and government minister, Nurkadilov later joined the opposition and accused the government of corruption.