He was a regional commander in the Turkish Gendarmerie in Lice, Diyarbakir in southeastern Turkey when he was assassinated by a sniper using a Kanas rifle.
Officially a victim of the Kurdistan Workers' Party (PKK) (which denied responsibility[2]), his death has long been considered suspicious.
[3] According to former PKK commander Şemdin Sakık, Aydın was one of those assassinated by the Doğu Çalışma Grubu, an alleged group within the Turkish military said to be linked to the Ergenekon organization.
[5][6] Aydın was one of those who believed the "Kurdish question" could not be solved by force, and needed a peaceful solution with economic and social measures.
[7] In 2013 Diyarbakir prosecutors asked the local Gendarmerie for the original 1994 document allegedly containing testimony from an unnamed PKK suspect admitting to the assassination of Aydın.