Complex sentence: Mehmet Aksoy (Firaz Dag) (24 February 1985-26 September 2017) was a British-Kurdish filmmaker who was killed while covering the battle to retake Raqqa in Northern Syria from ISIS.
Split into simpler sentences: Mehmet Aksoy (24 February 1985--26 September 2017), also known as Firaz Dag, was a British-Kurdish filmmaker. Aksoy was killed while covering the battle to retake Raqqa in Northern Syria from ISIS.