Nabil Fadlı born in Saudi Arabia in 1988 had crossed into Turkey through Syria as asylum seeker and has visited the Zeytinburnu Migration Directorate on Jan. 5 where he gave his finger print, said initial reports. Police department teams matched the finger print with pieces of the suicide bomber's corpse and identified the suspect.
Fadlı has showed an address to the directorate, having arrived with accompaniment of four others and stayed at the address for a few days before he disappeared, said security officials.
Directorate of Intelligence Bureau and anti-terror branch teams continue investigations to find the people who have helped Fadlı for his asylum request.
Meanwhile, one person has been detained over the Jan. 12 Sultanahmet attack that killed 11 people, Turkish Interior Minister Efkan Ala has confirmed.
Ala said a total of 3,318 people have been detained until now within the context of the fight against the Islamic State (IS) and other radical organizations.