(Oregon City, OR) -- A former Gladstone police officer has been sentenced a second time for the 2011 murder of his wife. Lynn Benton was originally sentenced to life in prison for the murder of Debbie Higbee in her Gladstone beauty salon. The Oregon Supreme Court overturned the murder conviction. In May, Benton pleaded guilty to a lesser charge of First-Degree Manslaughter. He was sentenced to 20 years in prison. He's served 15 years since the original conviction.