Russian ambassador to Turkey Andrey Karlov shot dead by police officer in Ankara who shouted 'Allah Arkbar...Aleppo, revenge'
http://www.telegraph.co.uk/news/2016/12/19/russias-ambassador-turkey-shot-assassination-attempt1/
http://www.express.co.uk/news/world/745301/World-War-1-Russian-ambassador-murder-Turkey-Franz-Ferdinand