Savannah Guthrie’s brother in law was the last person to see mom Nancy before she vanished

Nancy Guthrie’s son-in-law was the last person to see her before the 84-year-old mother of NBC star Savannah Guthrie vanished.

Savannah Guthrie’s brother-in-law, Tommaso Cioni, was the last person who saw Nancy Guthrie before she vanished, authorities have said.

Savannah Guthrie’s brother-in-law, Tommaso Cioni, was the last person who saw Nancy Guthrie alive, authorities have said. BACKGRID

No suspects have been identified five days after Nancy Guthrie (left) went disappear from her Tucson, Arizona home. savannahguthrie/Instagram

Cioni, who is married to Savannah’s sister Annie, dropped Nancy back at her Tucson, Arizona, home on Saturday evening after the 84-year-old had dinner with the couple. He made sure she made it safely inside the house before leaving, Pima County sheriff Chris Nanos told The New York Times.

Here’s the latest on Savannah Guthrie’s missing mom

• Arizona cops searching for Nancy Guthrie reveal they still have no suspect after 4 days, as FBI joins case
• Nancy Guthrie’s ailing health alarmed dispatchers immediately, 911 audio reveals
• Savannah Guthrie’s missing mom’s pacemaker stopped syncing with her Apple Watch
• Blood found in Savannah Guthrie’s missing mom’s home, which showed signs of forced entry: report

Nancy disappeared sometime between the drop off at 9:45 p.m. and Sunday morning, when friends at church became concerned that she wasn’t there.

Nanos said Guthrie’s family have been cooperative with investigators, who have spent four days desperately searching for her. No suspects have been identified in the disappearance.