A teenager accused of murdering the Turkish-Armenian journalist Hrant Dink goes on trial on Monday in Istanbul on Monday in a case considered a severe test of the independence and thoroughness of Turkey’s judicial system.

Dink was murdered on a street in Istanbul in January. A 17-year-old boy, Ogun Samast, was arrested and charged with the crime along with 17 alleged accomplices, all from the northeastern city of Trabzon.