How the Case Evolved
Events involving the terrorism investigation of Najibullah Zazi, according to FBI affidavits, public statements and public records:
Sept. 9 FBI agents see Zazi drive away from his home in Aurora, Colo., in a rented car. He is spotted the next day on the George Washington Bridge leading into New York, where he is stopped by police. After consenting to a search of his vehicle, he is allowed to go and travels to a home in Queens.
Sept. 10 New York police detectives meet with Ahmad Wais Afzali, an imam in Queens whom they have used as a source. Afzali says he recognizes Zazi in a photo.
On or around Sept. 11 Zazi and his father, Mohammed Wali Zazi, talk with Afzali by phone about what authorities had asked the imam.
Sept. 11 Zazi's rental car is towed for a parking violation, according to his attorney, Arthur Folsom. FBI agents search the car and find a laptop with an image of nine pages of handwritten notes on how to make explosives, detonators and fuses.
Sept. 12 Zazi flies back to Denver, though rental records show he was not due to return the rental car in New York until Sept. 14.
Sept. 14 FBI agents and police officers search three apartments and question residents of a Queens neighborhood. Agents find a scale and batteries bearing Zazi's fingerprints. An intelligence warning advises U.S. authorities to be alert for evidence of homemade hydrogen peroxide bombs.
Sept. 16 Federal agents interview Zazi, who voluntarily appears at the FBI office in Denver.
Sept. 17-18 Zazi allegedly tells FBI agents that, during a 2008 trip to Pakistan, he received instruction on weapons and explosives at an al-Qaeda training facility.
Sept. 19 Authorities arrest Zazi, his father and Afzali on charges of lying in a matter involving terrorism.
Sept. 24 Zazi is indicted by a federal grand jury in New York.
SOURCE: Associated Press