The Missing Piece in Tucson: A Case of Frustration and Resolve The six month search for Nancy Guthrie, the 84 year old mother of TV personality Savannah Guthrie, continues to be a complex puzzle that refuses to yield its secrets.
Last week, Pima County Sheriff Chris Nanos revealed that a hair sample found at her home had come back inconclusive, leaving investigators with more questions than answers.
This development is consistent with the fluid and often frustrating nature of forensic evidence.