The chief editor of a pro-Islamic Yeni Akit newspaper, Kadir Demirel, has died after being stabbed by his son-in-law, Turkey's Anadolu Agency said.
Demirel, 56, died late on May 29 at his daughter's home in Istanbul, where he had rushed to intervene in a row between the couple.
Anadolu said the son-in-law attacked Demirel and his daughter with a knife. Demirel died at the scene, and his daughter was being treated in a hospital.
Police were searching for the son-in-law, the agency reported.