 According to the complaint, Arbabsiar arranged to hire the source to murder the Ambassador using explosives, and Shakuri and other Iran-based co-conspirators were aware of and approved the plan.With Shakuri's approval, Arbabsiar caused $100,000 to be wired into a bank account in the United States as a down payment for the killing.In June and July 2011, the complaint stated, Arbabsiar returned to Mexico and held additional meetings with the DEA source, where Arbabsiar explained that his associates in Iran had discussed a number of further missions they wanted the source and his associates to perform, including the murder of the Ambassador.