Nancy Guthrie is among the thousands of people who go missing in the U.S. each year. But experts describe her case as "strange," with many unique details, from her age to her celebrity daughter.

The 85-year-old Alzheimer's patient disappeared from her residence in Twig, Minnesota, in 1991 and was never found.

When a loved one goes missing, relatives can feel guilty simply for eating, says Charlie Shunick, whose sister was kidnapped.

Recently, reports of missing persons have become more prevalent across social media platforms and news applications. This widespread attention has led many to question whether these cases are actually ...

It has been 30 days since 84-year-old Nancy Guthrie, mother of TODAY show co-host Savannah Guthrie, was kidnapped from her Catalina Foothills home.