hijacker

Those lessons went on to improve how victims' families were treated in the aftermath of 9/11, when four planes flying over the eastern US were seized simultaneously by hijackers, killing 2,977 people.

The 9/11 attacks saw hijackers crash passenger jets into the twin towers of the World Trade Center in New York and the Pentagon in Washington DC, killing nearly 3,000 people.

Almost 3,000 people were killed in the 11 September 2001 attacks, when hijackers seized passenger planes and crashed them into the World Trade Center in New York and the Pentagon outside of Washington.

Campbell, the alleged hijacker, is expected to be charged and arraigned Monday.

The driver and a second passenger were treated by paramedics at the scene and released and the hijacker was arrested.