Mystery Kidnapper Exposed: The DNA Trail That Could Crack the Nancy Guthrie Case
Drop Dead Serious With Ashleigh Banfield
Drop Dead Serious With Ashleigh Banfield
4.6 • 1.1K Ratings
🗓️ 4 March 2026
⏱️ 46 minutes
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Summary
The search for Nancy Guthrie, the 84-year-old mother of Today show co-host Savannah Guthrie, has now entered a critical new phase as investigators focus on the power of forensic DNA and genetic genealogy to identify the mysterious intruder caught on camera outside her Catalina Foothills home near Tucson. 31 days after Nancy vanished, law enforcement sources say there are still no active leads strong enough to secure a new warrant, but experts say the DNA trail left behind in the home could still lead investigators directly to the person responsible. In this episode of Drop Dead Serious, Ashleigh is joined by former Texas Ranger Brandon Bess, now a private investigator with PPI Security in Houston, who explains the real-world detective work behind genetic genealogy, from tracking family trees to knocking on doors and collecting DNA that can finally identify a suspect.
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Transcript
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| 0:00.0 | Hey everyone. I'm Ashley Banfield. This is Drop Dead Serious. Thanks so much for being here. |
| 0:09.3 | Big favor. Hit subscribe. It really helps a lot. I so appreciate you. And I really love that you're here. |
| 0:15.8 | Let's get right to it, shall we? It's another busy day. I didn't think it was going to be a busy day, but it is. |
| 0:21.8 | It's March 3rd as I record this, which is day 31 in the Nancy Guthrie case. And I've |
| 0:27.1 | talked to my law enforcement source who's told me a couple things that, you know, interesting |
| 0:32.0 | but frustrating. No extremely active leads at this point, as of a couple of days ago, not leads that would generate enough information to satisfy the warrant process is what I'm told. |
| 0:47.5 | And my source says don't expect any raids anytime soon. |
| 0:52.9 | You know, we've already had two. |
| 0:54.0 | The last one was February 13th. |
| 0:57.1 | That's over two weeks ago. |
| 0:59.6 | And so, you know, it's frustrating, but it doesn't mean that nothing's happening. |
| 1:05.5 | And to that end, I have such a good guest for you to hear today. I can't believe I haven't met Brandon Bess until now. He's a former Texas Ranger and he is right out of central casting. I love this guy. And you are going to hear more from him in the podcast in the future because he is smart as a whip. He's an expert in criminal intelligence. He did that with the Rangers. |
| 1:30.4 | Expert in cold cases. He did that. Expert in all things, Authrum Labs, because he worked with |
| 1:37.0 | othram Labs. In fact, helped solve the Mary Catherine Edwards case in Beaumont, Texas. And here's |
| 1:44.0 | what I have for you today. |
| 1:45.1 | It is such a treat. |
| 1:46.5 | Because I know you've heard a lot about DNA in this case. |
| 1:49.7 | Sheriff said something about DNA to NBC News, and I'm going to tell you that in a second. |
| 1:54.7 | But I want you to sort of know how it works once it gets out of the computers. |
| 1:59.5 | That's kind of a talk to me like I'm five way of |
| 2:01.8 | saying it. But look, we all know that DNA work and Authrum Labs and the lab in Florida, DNA |
| 2:08.2 | International in Deerfield Beach. They're all super smart people with very, very specified careers that, |
... |
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