Pima County authorities are grappling with significant forensic hurdles as the search for 84-year-old Nancy Guthrie, mother of Today show co-host Savannah Guthrie, enters its fourth week without a confirmed suspect. A “mixed” DNA sample discovered at her Tucson, Arizona home on February 20 has complicated efforts, blending genetic material from multiple sources and defying ... Read more
Week 4 Update — Mixed DNA Strands in Nancy Guthrie Case Raise Serious Concerns, Say Specialists
