Andrei Karlov, Russia’s ambassador to Turkey, was shot and killed today while he attended an art exhibit in Ankara. According to eyewitnesses, the assailant — an Islamist terrorist dressed as a policeman — shouted, “You killed innocent people, Ya Allah, bismillah!” The attack took place just down the street from the U.S. Embassy; the victims could just as easily have been American diplomats.

Unfortunately, this is just the beginning in Turkey. Just this month, there has been a bombing in the heart of the tourist district of Istanbul that killed more than three dozen people and wounded many more. Then there was a bombing in the central Anatolian city of Kayseri that killed 13 more. Last year, bombs killed over 100 hundred more in Ankara and Istanbul.