Oyub Titiyev

Oyub Titiyev, head of regional branch of Russian human rights group Memorial, attends a court hearing in Grozny, Russia, Tuesday, March 6, 2018. (AP Photo/Musa Sadulayev)

Oyub Titiyev, head of regional branch of Russian human rights group Memorial, attends a court hearing in Grozny, Russia, Tuesday, March 6, 2018. (AP Photo/Musa Sadulayev)