Former FBI agent reveals critical evidence in Nancy Guthrie's disappearance, suggesting multiple suspects were involved, ...

Mystery DNA and forensic delays are complicating the investigation into Nancy Guthrie’s disappearance in Arizona.

A strand of DNA. An eerie doorbell video. The investigation into Nancy Guthrie's disappearance reaches 100th day with no sign of a breakthrough.

The investigation into Nancy Guthrie's disappearance continues. Sheriff Nanos highlighted the importance of DNA analysis and ...

Nearly four months after Nancy Guthrie, 84, vanished from her Tucson home, investigators are still searching for answers. Despite numerous leads and FBI involvement, a rift has emerged between local ...

Retired FBI agent said a hair found in Nancy Guthrie’s home is likely one of many as investigators face scrutiny.

DNA evidence could prove critical. Nancy Guthrie missing for 100 days; no suspect yet in suspected kidnapping. FBI prioritizes DNA analysis from Guthrie’s home; investigation aided by multiple labs.

DNA evidence recovered from Nancy Guthrie’s home is being rushed to the FBI’s elite lab for cutting-edge analysis following earlier testing at a private lab, Wonderwall.com can report. The move comes ...

"It's just a matter of working through them," Harry Trombitas said, adding that investigators "may already be on to somebody ...

Today host Savannah Guthrie's missing mom, Nancy Guthrie, was 'alive' when taken from her home according to a retired FBI profier weighing in on the case ...

Sheriff Chris Nanos says slow and 'mixed' DNA results are making the Nancy Guthrie investigation 'difficult' and 'sensitive', ...

More than 100 days after Savannah Guthrie’s mother disappeared from her Arizona home, investigators are still searching for answers. But now, a crucial piece of DNA evidence could become the biggest ...