Murat Cihan, the victim's cousin, said his relative had no political or religious connections and lived "in his own world". CCTV footage verified by Reuters shows the two gunmen waiting briefly in an entrance hall at the church, before following a man inside. Another angle shows the attackers shooting the man walking in ahead of them. Istanbul Mayor Ekrem Imamoglu said the Polish consul general was also inside the church with his family during the attack. Footage from inside the church on Monday showed bullet holes on the side of a pew, as well as another in a wall.

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Persons: Mehmet Emin Caliskan, Tuncer Murat Cihan, Murat Cihan, Sukru Genc, Ekrem Imamoglu, Tayyip Erdogan, Tuncer, Alex Richardson Organizations: Islamic, Authorities, Italian Santa Maria Catholic Church, Reuters, Islamic State Locations: Mehmet Emin Caliskan ISTANBUL, Istanbul, Italian, Sariyer, Tajikistan, Russia, Sariyer's, Polish