rahman family home. that's the family's house? >> yes. >> gol's brother habib took over the care of his brother's house when he disappeared. >> thank you, thank you. so this is gol's house and his wife and mother still live here and his four daughters, we're just trying to work out if we can speak to them on camera. eventually we're invited to come in with the camera. gol has been dead for more than a decade now but this seems like a house still in mourning. for gol's mother one of the most painful things is that her son didn't get a proper burial. she says the americans never returned his body. in fact, it turns out the family went for years without knowing anything at all. despite relatives continually approaching authorities. the pairns had not only de-- the americans had not only detained gol, he died in their custody. simply stating that they weren't holding him, communications. >> they advised no person of this fame is currently being held. and this was in 2004 when they got this letter. >> yes. >> when did he this actually learn of gol's de

they were detained in exactly the same time that gol rahman was hmandied in custody. >> be nazar is one of 26 men the senate investigation found were wrongfully detained. sebastian, nice to meet you. >> yet though he didn't meet the be criteria for detention. their stories echoed those of others we had spoke to about the dark prison but they had new details. can you give us any information about exactly where the dark prison was located, anywhere at all? >> some people say that is the place this one here is where people were held. do you think the prison was that kind of size? are there any details you can remember? >> shawali khan's description is matched others. known as an old brick factory. said he can take us there. >> there is an airport there? >> exactly. now we'll make a turn. >> to the left? >> to the left. >> it's no longer a cia black site but the area is still used by afghan intelligence. >> it is still a secret place, they don't want he anyone inside. >> what happens if we're found? >> we would be definitely arrested. >> it is impossible to confirm the exact location. but k