An unnamed gunman shouts after shooting the Russian Ambassador to Turkey, Andrei Karlov, at a photo gallery in Ankara, Turkey, Monday. A gunman in a suit and tie shouted slogans about Syria's civil war after he killed Russia's ambassador to Turkey in front of stunned onlookers at a photo exhibition in the Turkish capital on Monday, according to an Associated Press photographer who witnessed the shooting. Police later killed the assailant, Turkish station NTV reported. (AP Photo/Burhan Ozbilici)

A Turkish policeman fatally shot Russia's ambassador to Turkey on Monday in front of a shocked gathering at a photo exhibit and then, pacing near the body of his victim, appeared to condemn Russia's military role in Syria, shouting: "Don't forget Aleppo! Don't forget Syria!" The leaders of Turkey and Russia said the attack in Ankara, the Turkish capital, was an attempt to disrupt efforts to repair ties between their countries, which have backed opposing sides in the Syrian civil war/Chicago Tribune. More here.