In the war on Boko Haram, many non-terrorists face lengthy detention
Investigators have found no concrete link between the attacker and ISIS
Attacker expressed support for Islamic State
Amnesty International reports abuse of Boko Haram suspects
Bangladesh attackers defied usual stereotypes of radicals
Locals blame the Fulani, a lesser-known but deadly group
Authorities interrogating five of the 13 rescued
Former analyst says his work might have prevented San Bernardino, Orlando
Suicide bombers kill dozens in triple bombing
Analysts skeptical about claims Nigerian army has freed thousands more captives
