On July 16, 2010, Japanese national Toshio Ito was kidnapped from Pangutaran, Sulu. At one point, the Philippine police believed the "treasure hunter," a Muslim convert also known by his Muslim name Mamaito Katayama, was acting as a cook for Abu Sayyaf; however, this was disputed by other nations, including the United States, which included him on its list of kidnap victims. A classified document obtained by Rappler lists Ito first, saying he was held captive by Abu Sayyaf's most senior leader, Radullan Sahiron, in Langpas, Indanan, Sulu early in 2013.