It's been more than a month since the mysterious disappearance of Nancy Guthrie captivated the nation, and yet, more questions than answers remain.
In a case that feels ripped from a true-crime novel, the 84-year-old mother of US television presenter Savannah Guthrie is believed to have been "taken in the dark of night from her bed," her daughter said, after last being seen on 31 January.
The shocking disappearance of the religious mother-of-three has turned her small suburb in Tucson, Arizona into a media circus and prompted more than 3,000 tips to police, tearful pleas from her famous daughter, cryptic ransom notes, Bitcoin demands and widespread speculation from online sleuths.
But each potential break in the case - including photos of the suspected kidnapper and DNA testing of gloves found near the scene - seems to lead to a dead end, with no arrests or even a named suspect.
Officials said early on that drops of the matriarch's blood were on the doorstep of her home and believe her suspected captor - a masked, glove-wearing man - took the front-door-camera that revealed his brief appearance. But those twists and turns have slowed to a trickle, with few recent big developments.
