What to know

• Holly Ratchford, who managed the apartment complex where two 9/11 hijackers lived, has broken 25 years of silence with a BBC interview detailing her observations of Omar al-Bayoumi's interactions with them.
• A federal judge ruled a year ago that evidence supports a reasonable inference Bayoumi coordinated with the Saudi government when assisting the hijackers, allowing a $1 trillion lawsuit against Saudi Arabia to proceed.
• Ratchford describes Bayoumi as friendly and sociable, but now realizes he was concealing his alleged role in facilitating the most devastating terrorist attack on U.S. soil.

“The evidence created 'a reasonable inference' that Bayoumi and a Saudi diplomat based in the US had been 'co-ordinating with the Saudi government when providing assistance to the hijackers'.”

Federal judge in 9/11 families' lawsuit, Judge, New York court · BBC

Holly Ratchford Property manager, Parkwood ApartmentsOmar al-Bayoumi Saudi national, alleged facilitator of 9/11 plotNawaf al-Hazmi 9/11 hijackerKhalid al-Mihdhar 9/11 hijackerKingdom of Saudi Arabia Defendant in $1 trillion 9/11 lawsuit