On 1 February 1979, two members of the ultra-nationalist Grey Wolves, Oral Çelik and Mehmet Ali Ağca (who later shot Pope John Paul II), murdered Abdi İpekçi in his car on the way back home from his office in front of his apartment building in Istanbul. Ağca was caught due to an informant and was sentenced to life in prison. After serving six months in a military prison in Istanbul, Ağca escaped with the help of military officers and the Grey Wolves, fleeing first to Iran and then to Bulgaria, which was then a base of operation for the Turkish mafia.