Al-Aruri moved to Iran and was one of al-Zarqawi's main facilitators there. In a Moroccan investigation into the March 2003 Casablanca bombings, Al-Aruri surfaced as a financier of the attacks as he had sent U.S. $70,000 to the Moroccan Aziz Hummani.[10] In 2003 he was arrested in Tehran.[2]