One man and two women were taken into custody today when heavily armed FBI teams searched a room in the Westin Hotel at Boston's Copley Plaza for information related to the attacks. Investigators say the three are being held on immigration-related charges. Police also detained one man after a Washington-bound Amtrak train originating from Boston was stopped in Providence, R.I., but officials at the Department of Justice said the train stop had nothing to do with the FBI's investigation and that Boston police decided to make the stop.
The Boston Globe reported that a copy of the Koran, instructions on how to fly a commercial airplane and a fuel consumption calculator were found in a pair of bags meant for one of the hijacked flights that left from Logan.
At about 9 p.m. Tuesday, FBI agents and Massachusetts State Police towed a rented, late-model, white Mitsubishi Mirage with a Virginia license plate to an FBI garage. Arabic-language flight training manuals reportedly were found inside the car.
Investigators were led to the car by another airline passenger who got into a dispute with two men in the car over a parking space. When he heard about the planes that crashed into the World Trade Center, he called authorities in Boston.
In Florida, authorities traced a 1989 Pontiac Grand Prix registered to a trained pilot and Egyptian national, Mohamed Atta, 33, to a Venice, Fla., address. Sources identify Atta as one of the hijackers.
Agents who reported to the address learned that Atta did not live there, but had stayed at the home last year while getting flight instruction. Agents also went to a Coral Springs, Fla., address listed on Atta's driver's license, sources said.
ABCNEWS sources identify another hijacker as Satan Suqami, a Saudi national on American Airlines Flight 11, whose passport was recovered in the rubble.
The FBI is also investigating possible connections Atta and another man only identified as Alchennen had in Hamburg, Germany. Acting on a tip from the FBI, a German SWAT team searched a residence where Atta and Alchennen allegedly once lived and found it empty. According to the investigators, neighbors said the home had been empty since February. Investigators attempted to collect fingerprints and other potential evidence.
Rudy Dekkers, CEO of Huffman Aviation in Venice, Fla., told ABCNEWS today that two men, one from Afghanistan and one from another country, had trained at his flight school from July 2000 to November, taking instruction on small planes. They got licenses and left for a southeastern Florida facility where they would be able to train on jets, he said.
A senior law enforcement official said two of the men suspected in the hijackings was trained at Huffman for at least a year. One was certified by the FAA. Huffman Aviation, Justice Department officials said, is just one of a number of different schools in several states that investigators are looking at.
The FBI asked Dekkers to give them documents about the two individuals and their training. He said he gave investigators all the documentation plus information on other students. "We fly hundreds of students from all over the world," he said.