Wall Street Journal reporter Evan Gershkovich went on trial behind closed doors in Yekaterinburg on Wednesday, 15 months after his arrest in the Russian city on espionage charges that he, his employer and the U.S. government vehemently deny.

The 32-year-old journalist appeared in the court in a glass defendants’ cage, his head shaved and wearing a black-and-blue plaid shirt. A yellow padlock latched the cage.