Mueller's family said the U.S. government told them of the assaults in June. Mueller, an American aid worker, died while being held captive by ISIS.
NBC News and Associated Press and Jon Schuppe, NBC News
Fri, 08/14/2015 - 3:12pm
Mueller's family said the U.S. government told them of the assaults in June. Mueller, an American aid worker, died while being held captive by ISIS.