his name is musbah eter. he's the libyan who confessed in the la belle case who names abu agela. he looks like this. and eter... >> and what does he say? he says basically abu agela armed the bomb for the for the la belle disco? >> dornstein: yeah, it's in german, but i'll give you from the english side. >> you know, if agents brought me this now, and i'm not there, i don't know what the... >> dornstein: but as a prosecutor assessing what... >> you find out. you go talk to this guy; you find out what he says. you get his story down, and you try and figure out how you can corroborate it. >> dornstein: i returned to berlin several times to learn more from muah eter. at this point, i'd told him my brother had been killed in the lockerbie bombing and that i was hoping he might be able to help me find the truth. >> dornstein: he took me to the building where he and abu agela had worked together in the mid-1980s. >> dornstein: i was hoping he would tell me more about lockerbie.e. but then in the middle of our filming, eter struck up a conversation wh a businessman who now worked at the

in both cases, the key witness would turn out to be the lawyer's client, musbah eter. since my last trip to berlin, i learned the u.s. government had contacted eter. they'd apparently heard about the link i'd found between him, the libyan bomb expert, and lockerbie. >> i believe the law enforcement people, they are motivated and take it for serious. >> dornstein: andreas schulz is musbah eter's lawyer. he was careful not to reveal too many details of the ongoing investigation. >> well, the competent authorities in the u.s. is the f.b.i. for this case. and that means the f.b.i. was here. >> dornstein: about lockerbie? >> recently, yes. but the main problem is time. time is running against the investigation, because these people are at a certain age. but, you know, this is in the hands of the u.s. authorities. if you put all the power and capability the u.s. has, i think that there are always ways to get your hands on culprits of lockerbie. so it's a question of the political will. >> dornstein: since the bombing in 1988, the f.b.i. has maintained lockerbie as an open cas