Dulmatin born Central Java, 1970 - January 31, 2008 is a senior figure in the militant group Jemaah Islamiyah and one of the most wanted terrorists in Southeast Asia. He is also known as Amar Usmanan, Joko Pitoyo, Joko Pitono, Abdul Matin, Pitono, Muktarmar, Djoko, and Noval. He has a nickname "Genius". Dulmatin is a Javanese Arabic man, 172 cm tall, weighing 70 kg, with a brown complexion.Dulmatin had received training in al-Qaeda camps in Afghanistan. He is believed to have been the prot‚g‚ of Azahari Husin and under Azahari's guidance Dulmatin became an electronics specialist and bomb making expert. He is allegedly one of the masterminds behind the 2002 Bali bombings in Indonesia which killed 202 people, including seven U.S. citizens and 88 Australians. Working alongside Azahari, Dulmatin helped to assemble car bomb and explosive vests used in the attack. He allegedly set off one of the bombs with a mobile phone.