The Disappearance of Nancy Guthrie

Lights spotted on inside a missing 84-year-old's Tucson home — is a self-styled online investigator seeing a real clue, or just a lit window?

A former L.A. County worker sent fake ransom demands to a missing woman's family — raising hard questions about why someone exploits grief for no clear gain.

Desert remains ruled out after nearly 7 months of searching — why do missing-person cases so often generate false leads that consume investigators?

A DNA breakthrough in the Nancy Guthrie case may finally point to kidnappers decades after attention faded — raising the question of whether cold cases only crack when science catches up.

Bones found in a backyard burn pit led to a son's murder charge — and he reportedly broke down the moment FBI played his own recorded voice back to him.

A former CSI investigator is spotting inconsistencies in the blood evidence from the Nancy Guthrie abduction case — raising fresh doubt about what the scene really shows.

Seven months in, a forensic linguist says the grammar in Nancy Guthrie's ransom notes is "strange" — and that word choice may reveal who really wrote them.

A YouTuber says a plumber visited 84-year-old Nancy Guthrie's Tucson home a week before her kidnapping — raising questions about whether the crime was planned.

A ski mask matching the suspect's description found near the Nancy Guthrie case — does one piece of physical evidence change everything?

An anonymous tip to TMZ claims a hidden cellphone holds video of missing Nancy Guthrie — raising whether a secret recording could crack the case.