external In the Media February 28, 2026 Peter Valentin, associate professor of forensic science, comments on the missing-person case of Nancy Guthrie, as the investigation is in its fourth week. https://www.foxnews.com/us/nancy-guthrie-disappearance-forensic-scientist-encourages-new-investigative-approach-case-isnt-cold-yet peter-valentin news-all news-in-the-media year-2026 month-february name-peter-valentincollege-lee-college