Nancy Guthrie’s disappearance shocked Arizona and drew national attention, investigators are still searching for answers. While no suspect has been publicly identified, experts believe new technology could play a key role in moving the case forward.According to Fox News Digital, FBI sources recently indicated that investigators are discussing the use of additional technological tools in the ongoing probe. Although officials declined to provide specifics, the development has fuelled fresh speculation about where the investigation could be headed next.The investigation into Nancy Guthrie’s suspected abduction from her Tucson home remains active, with authorities continuing to examine evidence collected over the past several months.ALSO READ: Is Savannah Guthrie done with the official investigation? Here's why she is spending $500K on private investigators for her missing mom, Nancy GuthrieWhat technology could help solve the case?You Might Also Like:Morgan Wright, CEO and founder of the National Center for Open and Unsolved Cases, believes the next major breakthrough could come from technology rather than traditional investigative methods, as per Fox News.Speaking with Fox News Digital, Wright said investigators may be focusing on three primary areas."The solution to this case is going to be, I think, something technical, something that they come up with — new ways of analyzing data," he told Fox News Digital. "I'm looking at the video, the video forensics, signals analysis, blockchain kind of stuff."According to Wright, enhanced video analysis could help investigators identify either the suspect or a vehicle connected to the case. Signal analysis could involve reviewing cellphone or advertising-related data, while blockchain investigations could potentially reveal information about the ransom and extortion attempts linked to the disappearance.You Might Also Like:ALSO READ: Nancy Guthrie’s case took another unexpected turn: Ancient skeleton found near search area- here's what it means for the case"If I'm going to put it into three buckets, I'd say it's going to come out of one of those three buckets," Wright added.He noted that investigative genetic genealogy could also eventually provide answers, although he said that would not qualify as new technology.You Might Also Like:Why do experts believe only one suspect was involved?Morgan Wright said the evidence that has been publicly discussed points toward a lone suspect. "I don't know that there's anything else to indicate a second person," he said.He pointed to surveillance footage showing only one individual and noted that no one has stepped forward to claim the reward now exceeding $1.2 million, as per Fox News.Wright also suggested that the suspect’s actions around the home’s security camera may provide clues."That's likely why the suspect was seen struggling to obscure the camera and eventually took it with him," he explained, adding that the goal may have been to conceal the vehicle rather than the suspect's face, which was already covered."The blood trail stops at the edge of the driveway," he said. "So we know there was a car."ALSO READ: Nancy Guthrie case mystery deepens: Former Sheriff says suspect’s name may already be there- here's the latest updateThe investigation has already included several advanced techniques. Authorities deployed Bluetooth detection equipment from a helicopter in hopes of locating signals from Guthrie’s pacemaker. Investigators also worked with Google to recover Nest doorbell camera footage despite the device being missing and lacking a cloud subscription, as per Fox News.The recovered footage reportedly captured images of a masked man near the property both on the night of the suspected abduction and weeks earlier.What criticism has the investigation faced?As investigators continue their work, questions have also been raised about how the case has been handled. Former Navy SEAL and FBI special agent Jonathan Gilliam criticized Pima County Sheriff Chris Nanos during an appearance on "Katie Pavlich Tonight," as per a report by NewsNation."I think it’s safe to say he is in over his head," Gilliam said of Nanos. "He really is making it up as he goes along."Gilliam also questioned decisions made during the early stages of the investigation and suggested that the Guthrie family's reported decision to spend roughly $500,000 on private investigators reflects concerns about the official response.The former FBI agent argued that strong leadership involves seeking outside expertise rather than rejecting it and referenced reports that volunteer groups and outside organizations assisted with search efforts, as per a report by NewsNation."That’s a very dangerous thing," he said. "Because as we see in this case, this could be a repeating issue."The Nancy Guthrie investigation remains unsolved. Authorities continue to urge anyone with information to contact the FBI or Tucson’s Crime Stoppers affiliate. With more than $1.2 million in reward money available and new technology potentially entering the investigation, experts believe a future breakthrough remains possible.FAQsHow much reward money is available in the case?More than $1.2 million is being offered for information that helps solve the case.Has a suspect been identified?No suspect has been publicly named by investigators.