 Now, she also explained how firefighters use infrared devices to help them locate a victim that might not be able to get out in case of a fire. And a 49-year-old Logan man is headed to jail after being convicted of driving under the influence for the third time in four years. Nathan David Olson was ordered to serve four months behind bars after telling the judge that he was trying to become sober. Olson was sentenced earlier this week in Logan's First District Court.