CREWS searching for Nancy Guthrie have resorted to cutting-edge technology that can locate her pacemaker from the skies.

A helicopter with a device attached has beenย spotted slowly moving across Tucson, Arizona, looking for a ping from the 84-year-oldโ€™s Bluetooth-enabled device.

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Nancy Guthrie, the 84-year-old mother of U.S. journalist and television host Savannah Guthrie is missing from her home in Tucson, Arizona
Helicopters searching for Nancy Guthrie have been fitted with cutting edge technology that can locate her pacemakerCredit: Reuters
Nancy Guthrie, the 84-year-old mother of U.S. journalist and television host Savannah Guthrie
Nancy, who is Today anchor Savannah Guthrieโ€™s mom, hasnโ€™t been seen since January 31Credit: Reuters
FBI Evidence Response Team member looking through binoculars in a desert landscape.
Investigators have been sifting through the desert terrain near her home in Tucson, Arizona, for over two weeksCredit: REUTERS
Image shows what the Federal Bureau of Investigation (FBI) describes as an armed individual at Nancy Guthrie's home in Tucson
Cops found a suspect on surveillance taken outside Nancyโ€™s home, but he hasnโ€™t been identifiedCredit: Reuters
The so-called signal sniffer is programmed to detect the unique address ofย Nancyโ€™s pacemakerย with a directional antenna, CBS affiliateย KOLDย reported.

Investigators hope it will sharpen the search near Nancyโ€™s home, which hasย been made difficult by the rough, desert terrainย peppered with cactus and sharp cliffs.

Fox Newsโ€˜ Griff Jenkins took a ride on the chopper, and described the process as finding a needle in a haystack, pointing to the thousands of properties in Nancyโ€™s neighborhood Catalina Hills.

While investigators are hoping to get a ping by flying the helicopter low to the ground, Morgan Wright,ย CEO and founder of theย National Center for Open and Unsolved Cases, said they should be using drones.

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Despite searching for well over two weeks, authorities still havenโ€™t been able to track down Nancy, who they fear was kidnapped from her bed on February 1.

They captured a masked suspect prowling outside her house on surveillance, but havenโ€™t pinned down his identity.

On Monday, Pima County Sheriff Chris Nanos, who is spearheading the search,ย ruled out Nancyโ€™s family as suspects.

He was forced to release a statement after the momโ€™s son-in-law Tomasso Cioni attracted baseless criticism for being the last person to see her.Travis Kelce’s wild Taylor Swift wedding countdown with ever-more dramatic gifts

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โ€œThe family has been nothing but cooperative and gracious and are victims in this case,โ€ the sheriff said in a statement.

โ€œTo suggest otherwise is not only wrong, but it is also cruel.

โ€œThe Guthrie family are victims plain and simple [โ€ฆ] please, Iโ€™m begging you the media to honor your profession and report with some sense of compassion and professionalism.โ€

Clues surface

Investigators confirmed the masked suspect wasย wearing a backpack and gun holster sold at Walmart, and experts say theyโ€™re likely combing through CCTV at stores in the area.

โ€œThe backpack and the holster are both very promising leads,โ€ Betsy Smith of the Nationalย Policeย Association toldย The New York Post.

If the suspect paid with a card and was caught on camera at the self-checkout, cops could better traced his movements.

While more investigation details are coming to light, heartbroken Savannah continues to plead with her momโ€™s suspected kidnapper.

In her latest video shared on social media, she begged the suspect to do the right thing and tell them Nancyโ€™s whereabouts.

โ€œI wanted to say that to whoever has her or knows where she is, that itโ€™s never too late,โ€ said the anchor who has clung to her faith and prayers.

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โ€œAnd youโ€™re not lost or alone, and it is never too late to do the right thing.

โ€œAnd we are here, and we believe in theย essential goodnessย of every human being, and itโ€™s never too late.โ€

More to followโ€ฆ For the latest news on this story, keep checking back at The U.S. Sun, your go-to destination for the best celebrity news, sports news, real-life stories, jaw-dropping pictures, and must-see videos.