Attack: Feb. 26, 1993
A truck bomb left in a basement parking garage blows up through several stories of the World Trade Center in New York City, killing six people and injuring more than 1,000.
Breakthrough: March 4, 1993
Investigators find a piece of a rental van marked with a vehicle identification number. They discover that the van had been reported stolen the day before the bombing. When the renter tries to collect his deposit, undercover FBI agents nab their first perpetrator: an Islamic fundamentalist named Mohammad Salameh.
Capture: Ongoing
Alleged mastermind Ramzi Yousef is arrested in Pakistan on Feb. 7, 1995 and turned over to the U.S., where four of his co-conspirators have already been convicted. A sixth plotter is soon arrested in Jordan. Today, a seventh suspect, Abdul Yasin remains at large and on the FBI’s most wanted list.