Syrian fighters from rebel group, arrive at a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Activists from The U.S.-based Syrian Emergency Task Force and people observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Syrian fighters from rebbel group, observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascusn Najha, south of Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Activists from The U.S.-based Syrian Emergency Task Force and people observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, southern Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Activists from The U.S.-based Syrian Emergency Task Force and people observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, southern Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Ambassador Stephen Rapp, a former ambassador at large for war crimes and international prosecutor, visits a location identified as a mass grave for detainees killed under rule of Bashar Assad, southern Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Syrian fighters from rebel group, observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascusn Najha, south of Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
An activist from The U.S.-based Syrian Emergency Task Force and people observes a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, southern Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Syrian fighters from rebel group, observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascusn Najha, south of Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Syrian fighters from a rebel group, arrive at a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, southern Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)
Activists from The U.S.-based Syrian Emergency Task Force and people observe a location identified as a mass grave for detainees killed under rule of Bashar Assad in Najha, south of Damascus, southern Damascus, Syria, Tuesday, Dec. 17, 2024. (AP Photo/Hussein Malla)