A frail-looking 71-year-old — who is a little unsteady on his feet — will be asked to enter a plea in a Washington DC court next week, charged over what's considered one of the worst terrorist attacks in US history.
The man — known as Mas'ud — is alleged to have built and delivered the bomb that brought down Pan Am flight 103 over Lockerbie, Scotland, in 1988, killing 270 people.
Prosecutors say that — in a confession extracted more than 10 years ago, while he was in custody in Libya on unrelated charges — he has also admitted to setting the timer.