Born: 06 September 1983;

Place of Birth: Surakarta, Indonesia; alt. Pekalongan, Indonesia;

Gender: Male;

Nationality: Indonesia;

Address:

1. Aleppo, Syria;
2. Raqqa, Syria;

Activities:

Tamtomo, known as Abu Rayan, is suspected of organizing the Jakarta attacks in January 2016 that killed four civilians and wounded 23 with explosions and gunfire.

Naim has often been associated with Mujahidin Indonesia Timur (or MIT) leader Abu Wardah, who has pledged allegiance to IS.

He has been known to the authorities since at least 2010 during terrorism investigations in Bekasi.

At that time the Anti-terror Detachment 88 arrested a Uyghur foreigner by the name of Alli.

The squad searched Alli’s residence in the Green Boulevard residential area at Taman Harapan Indah, Bekasi, but they did not find Alli’s passport, instead they found a vest-mounted suicide bomb and 533 pieces of 7.62 cm rifle bullets and 31 pieces of 9 mm bullets.

He is thought to be behind the funding of foreign nationals as well as pouring some funds to Indonesia to assemble bombs.

He was sentenced to two and half years in prison by the State Court of Surakarta, for possession of firearms and explosives.

From around October to November 2015, a Facebook account, named “Muhammad Bahrunnaim Anggih Tamtomo” actively distributed tutorials on making bombs and homemade firearms.

The page address was once linked to another radicals’s website, which listed more comprehensive bomb-making.

Bahrun Naim went to Syria to join the Islamic State of Iraq and the Levant (ISIS) in 2014 and is currently thought to be still in Syria. Initially, he joined an Islamic State support group in Solo.

In Syria, Bahrun created a blog, bahrunnaim.co, and started to write and interact with his supporters through online media.

In one of his posts, Bahrun told his struggle to get to Syria, where he took his wife and two children. At that time, his young wife became pregnant.