On August 3, 2013, Kayla Mueller and a friend visited a Doctors Without Borders hospital in Aleppo, Syria, to repair the hospital’s internet connection. They were reportedly taken captive by ISIS the next day. Kayla was not heard from again until the next spring. Then she sent a remarkable letter to her family through cellmates who were released. She stated that she had been “treated w/the utmost respect + kindness,” clearly writing before she faced the torture that was to come.