The disappearance of 84-year-old Nancy Guthrie continues to grip the nation — especially after ransom notes surfaced demanding $6 million for her return.Now, former FBI Assistant Director Chris Swecker is raising serious doubts about whether this is truly a kidnapping at all.”Is this really a kidnapping?”The frantic search for Nancy Guthrie, the missing mother of “Today” anchor Savannah Guthrie, has now entered its fourteenth day.Investigators were spotted setting up a tent outside the crime scene early Thursday, just hours after Savannah Guthrie shared an emotional video pleading for her mother’s safe return.

Authorities have also asked neighbors to turn over any home surveillance footage that might help the case, and Arizona officials say they’ve now received nearly 20,000 tips tied to the disappearance of the 84-year-old grandmother.Meanwhile, a disturbing new ransom note was sent to TMZ on Thursday morning.In it, the sender complained they were “not being taken seriously”But former FBI Assistant Director Chris Swecker says that he is “highly skeptical” about the third letter sent to TMZ, suggesting it could be opportunists trying to exploit the situation for their own gain.”I just don’t think anything TMZ has brought forward has panned out. I mean it’s a good vehicle for people to come in and do this, TMZ gets some viewership and it sort of ties up the investigative team trying to run this down. But I sense a scam here,” Swecker told Fox News’ The Faulkner Focus and added that he ”may be absolutely wrong,” but ”bottom line” is he’s ”very skeptical of it.”