The disappearance of Nancy Guthrie continues to draw national attention, particularly as her daughter, Today show host Savannah Guthrie, begins sharing her first interviews about the case.

On March 26, legal analyst and victims’ rights advocate Nancy Grace addressed the case on her program, featuring insight from a Davenport University faculty member.

Jeff Martin, who teaches cyber defense at Davenport and specializes in digital forensics, appears in the segment to discuss potential new evidence of lights in the distance during the kidnapping, captured by the Guthrie residence porch camera. This discovery may expand the crime scene to a nearby construction site and open new possibilities to collect evidence.

At the 6:35 point in the segment, Martin talks about the potential digital footprint around the construction site, the kinds of digital devices that may have been in play, such as Wi-Fi systems for worker use, security cameras, digital locks to secure equipment and digital time cards.

He also discusses the importance of determining if a separate cell phone tower was used in that area, in addition to the tower law enforcement identified, the significance of dogs in the neighborhood being awakened and details of an Amazon delivery. 

Click here to see the entire interview with Davenport’s Jeff Martin and Nancy Grace.