Ümit Yaşar Toprak ( 1970 – 23 September 2014) also known by his nom de guerre Abu Yusuf Al-Turki (the "Turk") was a sniper in the
al-Nusra Front
Al-Nusra Front or Jabhat al-Nusra or Jabhat Nusrat Ahl al-Sham, also known as Front for the Conquest of the Levant, and also later known as Jabhat Fatah al-Sham was a Salafi-jihadist organization that fought against Ba'athist Syria, Ba'athist ...
who trained fighters on how to become snipers. He was also a member of the Wolf Unit, which was described as a unit of al-Nusra Front fighters (according to documents found by members of the Dubai-based Al Aan TV station). The Wolf Unit is reportedly another name for the Khorasan Group, though there are indications that the Khorasan Group may not exist as a separate entity from Jabhat al-Nusra. Of Turkish descent, Al-Turki lived in the Turkish province of
Bursa
Bursa () is a city in northwestern Turkey and the administrative center of Bursa Province. The fourth-most populous city in Turkey and second-most populous in the Marmara Region, Bursa is one of the industrial centers of the country. Most of ...
, leaving behind five children so that he could fight for the al-Nusra Front. On 23 September 2014, Al-Turki was killed during a series of a U.S.-led anti-Khorasan Group coalition airstrikes over
Syria
Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...