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.

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

India, Feb. 21 -- One of the most unsettling sub-genres in the crime thriller genre is undoubtedly the case of missing persons. There's nothing more disturbing than the sudden disappearance of your ...