“Someone needs to do the right thing,” Guthrie tells Kotb in the new interview. “We are in agony. It is unbearable.”

Savannah Guthrie is back behind the anchor desk to co-host the “Today” show on NBC after her mother, Nancy Guthrie, went missing from her home near Tucson, Arizona, at the beginning of February. Officials say the investigation into her disappearance is still active,