WATCH: Graphic video shows assassination of Russian ambassador

Credit: DaytonDailyNews

>>>UPDATE: Turkish police arrest man who fired shots outside U.S. Embassy; unsure of connection to ambassador's shooting

Russian Ambassador Andrei Karlov was giving a speech Monday in the Turkish capital, Ankara, when a man wearing a suit and tie stood up, shouted and fired at least eight shots, according to an Associated Press photographer in the audience.