A day-by-day account of the second phase of Zacarias Moussaoui's sentencing trial, summarising the key events and testimonies presented by the prosecution.
THURSDAY 20 APRIL
Summary: Testimony concludes with prosecutors conceding they have no evidence to support Moussaoui's claim that he and so-called shoe bomber Richard Reid were going to team up to fly a plane into the White House on 9/11.
Key witnesses: Psychiatrist Raymond Patterson testifies. He has examined Moussaoui and disputes that the al-Qaeda man is schizophrenic.
WEDNESDAY 12 APRIL
Summary: A chilling recording from inside the hijacked US airliner which crashed in Pennsylvania on 11 September 2001 is played to the jury.
Prosecutors use voice and data recorders to build an audiovisual recreation of the last minutes of Flight 93.
Jurors hear hijackers speaking in Arabic and telling passengers to "shut up".
They hear passengers attempting to storm the cockpit to regain control of the plane, and the hijackers apparently deciding to fly the plane into the ground.
Key witnesses: Prosecutors present more witnesses, including Lorne Lyles, whose wife Cee Cee was a flight attendant on board the flight. They then rest their case.
TUESDAY 11 APRIL
Summary: The jury is shown graphic images of people who burned to death in the 11 September 2001 attack on the Pentagon, provoking gasps from those watching.
Some pictures show body parts; one a burned corpse on a plastic sheet; another a torso coated in white ash.
The jury also hears a recording made by air traffic control in which a voice from the cockpit of a hijacked jet can be heard screaming: "Mayday, Mayday, get out of here."
Key witnesses: Pentagon workers relate the scenes of horror and panic inside the building after it is blown up by the hijacked jet.
The jury also hears from the widow of a man whose telephone call from one of the twin towers of New York's World Trade Center was heard on Monday 10 April - including his final words as it collapsed.
Wendy Cosgrove says her husband Kevin's death has affected their children deeply, with one since becoming angry and self-destructive and another turning to self-mutilation.
MONDAY 10 APRIL
Summary: The jury hears the dying scream of a man, Kevin Cosgrove, who is talking on his mobile phone as the south tower of the World Trade Center collapses.
Trapped in his 99th floor office, the executive is talking to an emergency dispatcher when the building comes down. The recording is played with a synchronised videotape showing the moment when the tower falls.
Cosgrove, vice-president of insurance broker Aon, is heard shouting "Oh my God" amid crashing sounds, before he screams and the line goes dead.
Jurors also hear calls for help to emergency services from 34-year-old Melissa Doi, who is on the 83rd floor of the south tower.
Key witnesses: C Lee Hanson tells the court of a mobile phone conversation with his son Peter, who was with his wife Soo-Kim and two-and-half-year-old daughter Christine Lee.
They were on one of the hijacked planes originally bound for Disneyland and which was the second aircraft flown into the twin towers in New York.
FRIDAY 7 APRIL
Summary: The court is in recess, after hearing emotional testimony on 6 April.
THURSDAY 6 APRIL
Summary: The second phase of Zacarias Moussaoui's trial begins after the jury ruled he was eligible for the death penalty. Jurors now have to decide what sentence he will receive.
Key witnesses: Former New York Mayor Rudolph Giuliani describes seeing the horror of the 9/11 attacks on the city's twin towers.
He says he was unwilling to believe people were jumping from the buildings until he saw it with his own eyes.
He tells the jury the image of two people jumping together from the World Trade Center, holding hands, remains with him every day.
During Mr Giuliani's testimony, the jury is played video clips of the planes crashing into the twin towers, and people jumping from the buildings.
A former New York fireman, Anthony Sanseviro, also testifies, describing how a colleague was killed by a falling body.
Jurors also hear from relatives of some of the 9/11 victims, who describe the impact the attacks has had on their lives.
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