Investigators are intensively combing the residence and the surrounding location of Nancy Guthrie, who has been missing since January 31.
Law enforcement officials treated the property as a crime scene, finding DNA evidence that matched Nancy, and collected it further for the sake of analysis as part of the probe.
Authorities have also noted that her cellphone, wallet, and car were left behind. This raised so many concerns about her sudden absence, and police believe that she did not leave voluntarily.
Video and electronic evidence have been central to this timeline, as the home's doorbell camera was disconnected in the early hours of February 1. Meanwhile, the software later detected motion that could indicate a person, but no usable footage was retrieved because no active subscription was in place.
Furthermore, data from her pacemaker disconnected soon after, suggesting how her movements might have been interrupted during the later hours of the night.