Pima County Sheriff Chris Nanos believes his team is getting closer to figuring out what happened to Nancy Guthrie. Fox News Digital caught up with the law enforcement officer on Friday. When a videographer asked if he had a message for the Guthrie family ahead of Mother's Day on Sunday, he declined to answer. But when pressed if his team has gotten any closer to solving the case nearly 100 days into the investigation, he shockingly replied: "We are.