Career
Following controversies with his CHP party, he did not seek reelection in 2015. Hüseyin Aygün worked as a lawyer in his hometown after graduating from the Faculty of Law at Ankara University. Aygün is the writer of a number of books, mainly on the Dersim massacre, including the titles Dersim 1938 ve Zorlu İskan ("Dersim 1938 and the Forced Resettlement"), 0.0.1938 Resmiyet ve Hakikat ("001938 Formality and Reality"), Dersim 1938 ve Hacı Hıdır Ataç’ın Defteri ("Dersim 1938 and the Notebook of Hacı Hıdır Ataç"), Fişlemenin Kısa Tarihi ("The Brief History of Tagging") and his book in Zazaki language, Eve tarixe ho teri Amaene.
Kidnapping
Aygün was kidnapped by PKK militants around 19:00 hours local time on 12 August 2012 as he was returning from a visit in Ovacık, Tunceli accompanied with a newspaper reporter and his aide.
The militants stopped his car on the highway and forced the passengers to get official His companies were released, however he was dragged away into woodland by threateaning him to kill him at site if he would resist.
Aygün was freed unharmed on 14 August 2012. In his first statements, he said he was in good health and that he had been treated with respect.
While hardliner Metin Feyzioğlu criticized him for “approaching a terror organization with sympathy,” the party"s spokesperson Haluk Koç stressed that Aygün had made a call for peace.
In 2014, Aygün participated in the foundation of the United June Movement, a progressive organization in the wake of the Gezi protests. He urged the movement to stay free of turning into a party. Following Aygün"s criticisms of fellow CHP lawmakers and mayors, he was cited to his party"s Disciplinary Committee in January 2015.