If the kidnappers are real, they would not have shown their faces to NG. But that does not mean they will release her either. Any exchange is just all dicey. And I bet they would like to leave the country as well. IMO.
I think, if Nancy is still alive, making a video( recorded), sending it for proof of life could be traced to the sender, so unlikely. Even more so, I highly doubt they would do a Live chat with Nancy, so questions could be asked, to be sure it’s her, she is alive. Too much of a risk, I would think.
I pray for Nancy, but don’t see how she can be returned, slim hope. Sadly, I don’t see a viable way forward for Nancy, which is so sad. With FBI, so much heat, I suspect the perps still want the money, but they have No respect for human life, will not return Nancy. Just thugs that want money, and they likely won’t even get it!
As far as leaving the country, the abductors can collect $( if they are paid by the Family), from anywhere, its deposited online. They may have crossed the border right after crime, I doubt they would go now,( car might have been be identified). If they are already in MX, they may head as far South as possible, huge country.
Mexican police are very good at finding criminal Americans near the border, sending them back to USA for justice.
Just a few thoughts.
MOO