his attorney saying he was vindicated. >> after tonight, do you think guandique had guandique had any role in the murder? >> join us next tuesday night for election coverage. i'm david muir. >> and i'm elizabeth vargas. good night and have a great fo >> a new scam bringing criminals and their victims face to face. >>> the phone call you need to watch for.

guandique seemed anxious to talk to us. he was filled with lots of details about why he's innocent, ever touched or killed chandra levy. 15 years after chandra levy first went missing, here's where things stand today. the prime suspect, ingmar guandique, wants to stay permanently in the u.s. it's unlikely that will happen. >> he's clearly got aggravated felonies, which is grounds for deportation. >> disgraced congressman gary condit is out of politics and, for the most part, out of the public eye. but there he was last week >> i'm not the victim in this. the real victim is chandra and her family. >> reporter: the reporters sari horwitz and scott higham wrote a book about the tangled investigation called "finding chandra." both insist the misguided focus on condit is the reason levy's killer is not behind bars. >> from the beginning to the end, terrible mistakes by police and prosecutors. and in the end, no justice. >> reporter: the investigation is described to "20/20" as open but not active. the last hope could hang on tha