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.

“To the strongest person I know,” Michael wrote in the emotional post. “Surrounding you with love on Mother’s Day.” He also included several heart emojis, including a broken heart.

The message came as Savannah is still facing what she previously described as the “unbearable” pain of not knowing what happened to her mom.

During a tearful interview on Today that aired in March, the veteran journalist admitted she has struggled every night since Nancy vanished from her home on February 1.

“It is unbearable,” Savannah said while fighting back tears. “And to think of what she went through, I wake up every night in the middle of the night, every night, and in the darkness, I imagine her terror.”

The 54-year-old broadcaster also apologized to her missing mother during the candid interview, revealing her fears that her celebrity status may have played a role in Nancy’s suspected abduction.

“I just want to say, I’m so sorry, Mommy,” Savannah said through tears.

She pushed back against online speculation about members of her family being somehow involved in the case, including siblings Camron Guthrie and Annie Guthrie and brother-in-law Tommaso Cioni, calling the rumors devastating.

“There are no words,” she said. “I don’t understand, and I’ll never understand.”

Nearly 100 days after Nancy vanished, Pima County Sheriff Chris Nanos suggested investigators may finally be getting closer to answers.

When asked by Fox News Digital whether authorities were making progress in the case, Chris replied, “We are.”

The sheriff also suggested there were some “really great” developments in the investigation but declined to provide further details.

As law enforcement continues working the case, experts featured in NewsNation Presents: The Nancy Guthrie Mystery have begun exploring disturbing new theories.

Profiler Dr. Ann Burgess said she does not believe Nancy personally knew the suspect. “I wouldn’t think that Nancy Guthrie knew this person,” Ann said.

Behavior analyst Dr. Casey Jordan suggested the suspect may have targeted the elderly woman because of her famous daughter.

When NewsNation correspondent Brian Entin asked who may have suffered most from Nancy’s disappearance, Ann pointed directly to the Today anchor.

“In this case, it doesn’t have to be the mother,” Ann explained. “It could be somebody in the family. Somebody — Savannah.”

Asked whether the suspect may have wanted Savannah to “suffer,” Ann responded, “Yes.”

“And she’s haunted by that,” Casey added.