Abu Dujana ( ; born Ainul Bahri in Cianjur , West Java , 1968 ) was the military leader of Jemaah Islamiah from 2005 until June 2007 when he was arrested . As of December 2007 , he is facing trial in Jakarta on terrorism-related charges . He has allegedly played major roles in several terrorist bombings in South East Asia , including the 2003 Marriott Hotel bombing which killed 12 people and the 2004 Australian embassy bombing which killed 11 people . Abu Dujana is fluent in Arabic and English . He is thought to have travel to Pakistan and Afghanistan where he received weapons training and fought with the mujahideen . He has also spent time in Malaysia in the 1990s where he taught at an Islamic school in Johor and met Ali Ghufron who was involved in the 2002 Bali bombings . Abu Dujana also met and provided shelter to Noordin Mohammed Top . Abu Dujana became a JI leader following the death of bomb-maker Azahari Husin in 2005 . He headed JI 's military wing and was capable of assembling bomb and recruiting members . He has allegedly procured and kept two caches of explosives for attacks against Christians and government workers in Poso , Central Sulawesi , Indonesia . Police has seized the two caches of explosives
2002 Bali bombings
2002 Bali bombings
Abu Dujana (Jemaah Islamiah)