Savannah Guthrie's family marked Mother's Day under a cloud of heartbreak as the Today show co-host continues to grapple with the mysterious disappearance of her mother, Nancy Guthrie, Wonderwall.com can report. The emotional holiday came as investigators hinted they are finally making progress in the case nearly 100 days after Nancy vanished from her Arizona home. Savannah's husband, Michael Feldman, shared a touching tribute to the NBC star on Instagram May 10 alongside a photo of her kissing their children, Vale and Charley.