Burhan Ozbilici. An unnamed gunman gestures after shooting the Russian Ambassador to Turkey, Andrei Karlov, at a photo gallery in Ankara, Turkey, Monday, Dec. 19, 2016. AP Photo/Burhan Ozbilici.

Burhan Ozbilici. An unnamed gunman gestures after shooting the Russian Ambassador to Turkey, Andrei Karlov, at a photo gallery in Ankara, Turkey, Monday, Dec. 19, 2016. AP Photo/Burhan Ozbilici.
Burhan Ozbilici. An unnamed gunman gestures after shooting the Russian Ambassador to Turkey, Andrei Karlov, at a photo gallery in Ankara, Turkey, Monday, Dec. 19, 2016. AP Photo/Burhan Ozbilici.