An Afghan immigrant from Denver who federal officials say was at the center of a Qaeda plot to set off bombs in the United States appeared in court in Brooklyn for the first time on Tuesday and pleaded not guilty to terrorism-conspiracy charges.
The man, Najibullah Zazi, 24, who was born in Afghanistan, raised in Pakistan and lived in New York for 10 years before moving to Denver in January, was arrested there on Sept. 19 on charges that he had lied to the authorities during a terrorism investigation. Four days later, Mr. Zazi, who drove an airport shuttle bus in Denver, was indicted in Brooklyn on the bombing-conspiracy charges.
The authorities have said that he received weapons and explosives training at a Qaeda camp in Pakistan last year, bought beauty products that contained the raw materials to build a bomb and traveled to Queens with bomb-making instructions in his laptop on the eve of the anniversary of the Sept. 11 attacks.
Federal marshals brought Mr. Zazi to New York on Friday after a federal judge in Denver dismissed the false-statement charge against him and ordered him held without bail and transferred to Brooklyn to face the more serious terrorism indictment.