Nancy Guthrie investigation failures are ‘shocking and disturbing’ — FBI must take control to catch killer: sources

"It's ridiculous for egos to ever be involved in delaying or obfuscating an investigation. Law enforcement on all sides should have the same goal — to resolve the crime," former FBI profiler Jim Clemente said.

The investigation into Nancy Guthrie's disappearance is still "very active," Pima County Sheriff Chris Nanos said after two ransom notes were released. CBS News' Anna Schecter has more.

Don Arnold / WireImage President Donald Trump has inserted himself into the case surrounding the disappearance of Nancy Guthrie, one day after a desperate plea from her famous daughter. Guthrie, the 84-year-old mother of Today show host Savannah Guthrie, was reported missing from her Tucson, Arizona-area home on Febru

Questions mount over Nancy Guthrie investigation after report details alleged early blunders  MARCA

A forensic linguist told the BBC it's possible to glean crucial information about a person from just a few sentences.