(West Fargo, ND) — The West Fargo man convicted of murdering his wife will spend the rest of his life in prison. Spencer Moen learned his sentence yesterday in a Cass County courtroom. Moen was found guilty last October of beating Sonja Moen to death and leaving her in a bathtub to die. During sentencing, Judge Nicholas Chase told Moen, it’s off the charts, the harm you caused.