Born in Moscow in 1954, Andrei Gennadyevich Karlov (Russian: Андрей Геннадьевич Карлов) was educated at the Moscow State Institute of International Relations and the Diplomatic Academy. He began his career with the government at the Ministry of Foreign Affairs of the USSR in 1976. Karlov went on to hold various diplomatic positions at the Russian embassy to North Korea. He had been Russian ambassador to Turkey since July 2013.
After shooting Karlov, Altıntaş is reported to have shouted: "Allahu Akbar (God is great). We are those who have sworn allegiance to Muhammad for Jihad as long as we live. Do not forget Aleppo, do not forget Syria. Unless our provinces are safe, you will not taste safety either. Every single person who has a share in this cruelty will pay." After the assassination, Altıntaş was killed by security forces. Karlov was rushed to hospital, but was later pronounced dead.