Nancy Guthrie sheriff defends pace of investigation more than 4 months into search

The sheriff overseeing the investigation into the suspected abduction of Nancy Guthrie blamed lab work, scientific protocols and the judicial process for delays in the investigation, which entered its fourth month Monday, in an interview with local media this week. "It's just not a detective goes out there, talks to somebody, and we can make an arrest," he told the Tucson-based KOLD-TV . "This is a very sensitive case, but what really makes it prolonged is we do rely on labs." Detectives have re