(CNN) -- SNIPPET: "The charge centers around a one-way ticket that authorities allege Abdel Hameed Shehadeh purchased from Queens, New York, to Islamabad, Pakistan. Shehadeh originally told investigators that the purpose of his trip was to visit an Islamic university and attend a friend's engagement party. But he later admitted to FBI agents in Hawaii that he bought the ticket in order to join a fighting group such as the Taliban, according to a criminal complaint unsealed in New York Monday."