BBC Video and Turkish news explain what is known about this breaking story. GRAPHIC videos below.
UPDATE: Daily Mail reveals that the killer was Mert Altintas, 22, a member of Ankara's police riot squad, who put NINE bullets into the Russian diplomat while yelling, "'Allahu Akbar (Allah is Great). We die in Aleppo, you die here!" as well as: "Only death will take me out of here."
UPDATE: Sister and mother of Russian diplomat killer detained by police.
UPDATE: Killer of Russian Ambassador identified as Turkish policeman.
#BREAKING Killer of Russian envoy identified as Turkish policeman: Ankara mayor— AFP news agency (@AFP) December 19, 2016
More videos and pics of those involved on this twitter feed as well.
UPDATE: "ALLAH HU ACBAR!!"
UPDATE: CNN video
From hurriyetdailynews Turkish news:
Russia’s ambassador to Turkey, Andrey Karlov, has been shot at an art exhibition in the Turkish capital of Ankara, Russian embassy sources have confirmed to the Daily News. Karlov was shot by a gun while making a speech at a painting exhibition in the Turkish capital, the embassy said, adding that it believed that it was a radical Islamist attack.Private broadcaster CNN Türk said Karlov was in a critical state.The three wounded people were taken to Güven Hospital in central Ankara, reporters said but did not confirm whether the envoy was among them.
Kılıç also added that the attacker chanted Islamist slogans, but he did not remember the exact words.
This video claims to show the attacker.
Sadly it does not play the audio of what he was saying.
The photo below from BILD, appears to show the killer doing the Islamic State salute.