Basically an oold friend of her persented the scammer guy to her...now she is trying to reach to her friend for telling him what happened, but he wont answers the phone...started thinking that maybe he is part of it too...she cant find or meet the guy for now .
Damn, that's unfortunate. Have you reported him to the police? You should be able to do that right? Considering that she knows his face and probably his name too. If the police are quick, they should be able to track him down if he's still in your country. If not, then I guess you can still rely on the Interpol.