The third search for Nancy Guthrie, the 84-year-old Tucson woman who vanished from her home on February 1, was postponed after Mexican authorities failed to make themselves available for the scheduled June 16 operation near the Arizona-Mexico border. A volunteer group that has been combing the desert on its own now waits for a government that has shown little urgency to set a new date.
Guthrie, the mother of NBC "Today" show host Savannah Guthrie, has been missing for more than four months. The case has drawn national attention, more than $1 million in reward money, and the involvement of both the FBI and the Pima County Sheriff's Office. Yet the most active boots on the ground in Mexico belong not to any law enforcement agency but to Buscando Corazones, a civilian volunteer search group based in Nogales, Sonora.
That a private group of Mexican volunteers is leading the physical search, while official agencies on both sides of the border remain at arm's length, tells you most of what you need to know about the state of this investigation.
Buscando Corazones received an anonymous tip at an undisclosed date claiming Guthrie's remains were buried near a stream and under a tree in the Mariposa area, close to the Mariposa Port of Entry on the Mexico-Arizona border. The group's leader, Ramona Guadalupe Ayala Ortiz, told the New York Post: "We received an anonymous call telling us that the woman's [Guthrie's] remains were in the Mariposa area, in a grave over a stream."
The group conducted its first search on May 16 and a second on June 10. Neither turned up evidence of Guthrie. The Post noted that the Mariposa search area is the same location where Buscando Corazones previously discovered 25 unmarked graves, a detail that underscores how lawless and violent the terrain along the border has become.
A third search was set for June 16. It never happened. 12News reported that Mexican authorities, who accompany every search for the volunteers' protection but are "not officially involved in any investigation", were simply unavailable that day. The group is now waiting for authorities to propose a new date.
Read that again: the volunteers are ready. The government is not.
On the American side, the Pima County Sheriff's Office has acknowledged the anonymous tip but disclosed no independent action to verify it. The agency posted a statement on X:
"We are aware of reports regarding an anonymous tip related to the Nancy Guthrie investigation that was provided to a group in Mexico. At this time, we have not been contacted by Mexican authorities. This investigation remains active and ongoing, and we will continue to follow up on any credible information."
The statement raises an obvious question: if the investigation is "active and ongoing," why hasn't the Sheriff's Office reached out to Mexican authorities itself, rather than waiting to be contacted? The tip names a specific area. Searches have already occurred there. And the agency's own language, "we have not been contacted", reads more like a disclaimer than a plan of action.
The political turmoil surrounding Pima County Sheriff Chris Nanos has only added to public frustration with the pace of the official investigation.
The FBI, for its part, has been listed as the primary tip contact, directing the public to call 1-800-CALL-FBI. Newsmax reported back in February that the bureau had expanded its search by coordinating with Mexican authorities through its legal attaché office in Mexico City and a suboffice in Hermosillo, Sonora. At that time, Pima County Sheriff Chris Nanos stated there was "no indication Nancy Guthrie was taken into Mexico," though authorities were "not ruling anything out."
Four months later, a volunteer group in Nogales is acting on a tip that points directly into Mexico, and the official line from U.S. law enforcement has barely moved.
The Associated Press reported that Nancy Guthrie was last seen at her home just outside Tucson on January 31 and was reported missing the following day. Authorities believe she was kidnapped, abducted, or otherwise taken against her will. Drops of blood were found on her front porch. The FBI released surveillance footage of a masked person at Guthrie's home the night she disappeared.
No arrests have been announced. No suspects have been publicly named. More than 20,000 tips have poured in, and the reward pool has grown past $1 million. Yet the case remains unsolved, and the most visible search activity is happening on the Mexican side of the border, led by civilians.
The AP report also revealed that law enforcement has urged the public to stop conducting independent searches, warning that untrained volunteers risk contaminating the crime scene. The Pima County Sheriff's Department stated bluntly: "We all want to find Nancy, but this work is best left to professionals."
That argument carries weight in theory. In practice, the "professionals" have produced no public results in more than four months. And the volunteers filling the gap are not amateurs stumbling through the brush. Buscando Corazones and groups like Madres Buscadoras de Sonora have years of experience searching for the missing and the dead in some of the most dangerous terrain in North America.
Lupita Tello, a volunteer with Madres Buscadoras de Sonora, told the AP: "We know the soil. We know when someone has dug deep or when there is a shallow grave. We hope we can help because we understand the pain of having a missing relative."
These are women who have spent years looking for their own missing loved ones in a country where tens of thousands of people have vanished. They are not hobbyists. They are not contaminating anything. They are doing what governments on both sides of the border have failed to do.
The fact that the search for an 84-year-old American woman has shifted to the Mexican side of the border, based on a tip claiming she is buried in an unmarked grave in the same area where 25 other unmarked graves were previously found, deserves more public scrutiny than it has received.
Fox News reported on June 12 that the anonymous tip indicated Guthrie's remains may be buried in an unmarked grave in the Mariposa area near Nogales. The Washington Examiner noted that the Pima County Sheriff's Office confirmed it had not been contacted by Mexican authorities regarding the tip, a gap in cross-border coordination that remains unexplained.
Savannah Guthrie posted on Instagram: "We will never stop looking for you. We will never be at peace until we find you."
The family's anguish is plain. So is the institutional failure surrounding this case. An elderly woman vanishes from her home near the border. Blood is found on her porch. A masked figure is caught on camera. Months pass. No arrest. No suspect named. And the most determined search effort is run by volunteers who have to wait for a foreign government to pencil them in.
The list of unanswered questions in this case is long and growing. Who sent the anonymous tip to Buscando Corazones, and through what channel? Has any U.S. agency independently investigated the Mariposa search area? Which Mexican agency, specifically, accompanies the searches, and why were they unavailable on June 16? Who administers the $1 million-plus reward fund? Are there named suspects or persons of interest that authorities have declined to make public?
None of these questions have been answered in any public statement from U.S. or Mexican authorities. The Pima County Sheriff's Office says the investigation is "active and ongoing." The FBI says to call its tip line. And the volunteers keep searching, when the government lets them.
When civilian volunteers in a foreign country show more urgency than the agencies paid to solve the crime, something has gone badly wrong. Nancy Guthrie's family deserves better. So does every taxpayer funding an investigation that, from the outside, looks like it has stalled at the border and stayed there.