Douglas County District Attorney Mark Fruehauf said he had concerns over a former Superior officer's credibility.
Instead of widening the highway, the current footprint will be maintained when the road is improved next year.
Jon K. Miller, 84, of Owatonna, Minn., was charged with first-degree murder in the death of Mary Schlais of Minneapolis in 1974. Investigative genetic genealogy credited with leading to his arrest.