The suspect, 21-year-old Quazi Mohammad Rezwanul Ahsan Nafis, is a Bangladeshi national who came to the U.S. on a student visa in January for the specific purpose of launching a terror attack here, authorities said. He allegedly told an undercover agent last month that he hoped the attack would disrupt the presidential election, saying "You know what, this election might even stop," according to the criminal complaint against him.