Jakarta attackers possibly brought together by local IS-affiliated Bahrun

Radical link: Terror experts have also been linking the attacks to jailed radical Muslim cleric Aman (centre). — Reuters

Jakarta: Two were hardened militants in their thirties who had served time for crimes committed in the name of terror, while the other two were just 25 years old.

The men who mounted the Jan 14 attack in Jakarta might have been from different regions in Indonesia, but they shared a common extremist ideology.