The search for Nancy Guthrie, Savannah Guthrie's 84-year-old mother, intensifies in Tucson as Fabian Pacheco, the chief of detectives at the Pima County office, discusses the investigation’s challenges on ‘The Story.’ #fox #media #breakingnews #us #usa #new #news #breaking #foxnews #crime #crimenews #crimestory #criminal #police #investigation #missingperson #publicsafety #arizona #tucson #lawenforcement #sheriff #savannahguthrie #family #community Subscribe to Fox News: https://bit.ly/2vBUvAS