It is bringing back memories of the McStay family and the belief that they went to Mexico. I understand why they’re checking out that theory but my gut tells me she’s still in the US. The perp, however, may have fled. Unfortunately, they don’t know who they’re actually looking for. I wonder if they can look at records of who crossed the board the day she vanished or a day later. That could take forever. They’d have to track down people living in Mexico or tourists who could live anywhere in the US.