The man accused of sending more than a dozen pipe bombs to prominent Democrats and critics of President Trump will be held without bail, a judge ruled on Tuesday. Cesar Sayoc made his first court appearance in Manhattan, after being transferred from Florida to New York's federal Metropolitan Correctional Center on Monday. The charges against Sayoc were filed in the Southern District of New York. The 56-year-old appeared in court wearing a blue T-shirt with his gray hair pulled back in a tight pony tail. He did not wear handcuffs or shackles. He seemed calm throughout the 10-minute hearing. As U.S. Magistrate Judge Robert Lehrburger asked Sayoc routine questions, he remained soft-spoken and polite. His only responses were "Yes, sir" and "100 percent." Assistant U.S. Attorney Jane Kim, said he posed "a serious risk of danger to the public" and described him as "a flight risk." Meanwhile, Sayoc's court-appointed lawyer did not seek his release on bail. At the end of the hearing, Sayoc embraced his attorney, Sarah Jane Baumgartel.Sayoc was arrested and charged on Oct. 26, with five federal crimes. Court documents indicate he is charged with transporting explosives across state lines, illegally mailing explosives, threatening former presidents and others, threatening interstate communications and assaulting federal officials. As NPR's Emily Sullivan previously reported: