The desperate search for the mother of NBC’s “TODAY” show co-anchor Savannah Guthrie, is ongoing, with mounting questions about what happened to Nancy Guthrie and concerns for her physical health

The search for missing 84-year-old Nancy Guthrie, mother of “Today” show host Savannah Guthrie, has stretched into a second, anguished week, with mounting pressure on investigators and a family grappling with uncertainty.

Flower bouquets and yellow ribbons fill a quiet corner of suburban Tucson that has captivated the nation.

Blood droplets at Nancy Guthrie's Tucson home suggest abduction, forensic pathologist Dr. Michael Baden tells investigators examining the missing 84-year-old's February 1 disappearance.

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.

Nancy Guthrie, the mother of "Today" show host Savannah Guthrie, was last seen at her home in Tucson, Arizona, on January 31.

Police investigating Nancy Guthrie's disappearance focus on specific January dates, seeking surveillance footage as the 84-year-old's case unfolds.

The disappearance of Nancy Guthrie has drawn national attention amid reports of ransom notes and emotional video pleas by NBC's Savannah Guthrie.

Investigators are pleading with people to share home surveillance camera footage from specific dates leading up to the disappearance of Nancy Guthrie as they deal with thousands of tips in their hope to crack the case.

Nancy Guthrie, the 84-year-old mother of "Today" show host Savannah Guthrie, has been missing for over a week.