NEW YORK (AP) — A second college student was arrested on Wednesday in the investigation of an alleged plot to support the Islamic State group by using homemade explosives to attack New York City targets. Fereed Mumuni, 21, was ordered held without bail on attempted murder charges accusing him of trying to kill an FBI agent with a large kitchen knife in a struggle while agents who were executing a search warrant at his Staten Island home. Electronic surveillance revealed that he had researched how to build a pressure-cooker bomb and looked up New York City landmarks and tourist attractions on the Internet, the papers say.