India, May 7 -- It has been three months since Nancy Guthrie, the 84-year-old mother of Today co-anchor Savannah Guthrie was abducted from her home in Tucson, Arizona on February 1. No suspect has been named so far but investigators and experts are still actively working the case and new developments suggest that science and hope may yet bring answers.

On May 6, The CW aired a special called NewsNation Presents: The Nancy Guthrie Mystery, in which NewsNation Senior National Correspondent Brian Entin spoke with forensic science professor April Stonehouse of Arizona State University about the DNA evidence in the case.

Stonehouse explained that whoever took Nancy would have inevitably left biological traces behind. "We know scientifically ...