<p class="speakable">New reports attributing Nancy Guthrie's disappearance to a burglary gone wrong were disputed by a law enforcement source Sunday, as investigators pushed back on what they say is not the leading theory in the case.</p><p class="speakable">The source, speaking to Fox News Digital on condition of anonymity, said the latest theory behind the missing 84-year-old’s disappearance is not currently the prevailing view among investigators.</p><p>"This is not the working theory inside the unit," the source said before pushing back further on the burglary narrative, noting that <a href="https://www.foxnews.com/category/us/crime/robbery-theft" rel="noopener" target="_blank">nighttime residential burglaries</a> are uncommon.</p><p>"Nighttime residential burglaries are so ridiculously rare. Crazy rare," the source said, before highlighting how "commercial building burglaries" happen at night and "residential during the day."</p><p><a href="https://www.foxnews.com/us/fox-news-true-crime-newsletter-ransom-deadline-passes-key-evidence-emerges-nancy-guthrie-case" rel="noopener" target="_blank"><strong>FOX NEWS TRUE CRIME NEWSLETTER: RANSOM DEADLINE PASSES, KEY EVIDENCE EMERGES IN NANCY GUTHRIE CASE</strong></a></p><p>The source also questioned whether Guthrie’s home would have been a likely burglary target.</p><p>"We don't have any indication that [Guthrie] really kept anything valuable there and if this was a burglary gone wrong, they don't take the victim with them usually," the source said.</p><p>"I guess anything is possible but my gut says it's something else entirely."</p><p><a href="https://www.foxnews.com/category/us/crime/police-and-law-enforcement" rel="noopener" target="_blank">Pima County Sheriff Chris Nanos</a> also addressed the new report by a <a href="https://www.foxnews.com/category/us/us-regions/southwest/arizona" rel="noopener" target="_blank">local Arizona TV news reporter</a> which claimed an inside source said investigators now believe the case was a "burglary gone wrong."</p><p>The report also said DNA evidence collected from a Range Rover found outside a Culver’s restaurant on Friday is being tested and alleged that many investigators believe Nancy Guthrie is still alive.</p><p>"It did not come from us. No idea and even though that is one of many possibilities, we would never speculate such a thing. We will let the evidence take us to motive," the sheriff told Fox News correspondent Matt Finn.</p><p>Separately, <a href="https://www.foxnews.com/category/tech/topics/fbi" rel="noopener" target="_blank">the FBI</a> confirmed that a black glove recovered last week appears to match the one worn by the man seen on surveillance video at Guthrie’s Tucson-area home.</p><p><a href="https://www.foxnews.com/us/advanced-video-equipment-seen-nancy-guthrie-home-experts-break-down-its-possible-role" rel="noopener" target="_blank"><strong>ADVANCED VIDEO EQUIPMENT SEEN AT NANCY GUTHRIE HOME AS EXPERTS BREAK DOWN ITS POSSIBLE ROLE</strong></a></p><p>According to a statement provided to Arizona’s Family on Sunday, the glove was found about two miles from Guthrie’s home in a roadside field. The glove was sent to a private lab in Florida on Thursday and arrived Friday.</p><p>Federal officials said <a href="https://www.foxnews.com/us/retired-fbi-agent-urges-rapid-dna-testing-guthrie-case-you-dont-wait-fedex-monday-morning" rel="noopener" target="_blank">preliminary DNA</a> profile results were received Saturday, and investigators are now awaiting quality control and official confirmation before uploading the DNA profile into the FBI’s national Combined DNA Index System, or CODIS.</p><p><a href="https://foxnews.onelink.me/xLDS?pid=AppArticleLink&amp;af_dp=foxnewsaf%3A%2F%2F&amp;af_web_dp=https%3A%2F%2Fwww.foxnews.com%2Fapps-products" rel="noopener" target="_blank"><strong>CLICK HERE TO DOWNLOAD THE FOX NEWS APP</strong></a></p><p>"The one with the DNA profile recovered is different and appears to match the gloves of the subject in the surveillance video," the FBI said in its statement.</p><p><a href="https://www.foxnews.com/category/person/savannah-guthrie" rel="noopener" target="_blank">Savannah Guthrie</a> also released a new video Sunday as the search for her mother entered its 15th day.</p>