Fearless ISIS recruits in Yemen may have completed jihadi training, but not before being subject to an excruciating hazing routine.
The civilian casualties may include the daughter of a U.S.-Yemeni militant killed in 2011.
Al-Qaeda in the Arabian Peninsula has taken advantage of conflict in the region.
Nasir al-Wuhayshi was the head of Al-Qaeda in the Arabian Peninsula.
Marcos Alonso Zea, 26, is an American citizen.