"said the spokesman, Sutopo, who goes by only one name"
Like Cher, Bono, Madonna, and Elvis?
Mohammedans actually use only one name. The name we take as the surname is generally the father's given name. Some, usually the ones from more prominent families use thei father's name and add to it the grandfather's name and then perhaps the place of birth or the famiy center.A formal name may be quite lengthy and be composed of a number of such elements. It's like Mohammed son of Mohammed son of Mohammed from Cleveland.
Most Indonesians go by one name.