A Casper man will serve a prison sentence for sexual assault of a minor at the same time he is serving another sentence for child pornography possession, a Natrona County District Court judge ruled Tuesday.

Rick William Olsen, who was 49 when arrested, will serve five years to six years, eight months of imprisonment in federal prison, Judge Thomas Sullins said.

The state and his defense counsel recommended the sentence. They agreed to expedite Olsen's sentencing without a pre-sentence report because they had no disagreement with the one conducted by the federal government in the child pornography case.

Olsen, who called himself "Rico Suave" according to court documents, declined to comment before Sullins sentenced him.

Olsen was charged with making a child under 13 (born in 2008) sexually touch him multiple times from May 2014 to June 2015, according to court records.

If the case had gone to trial and he was convicted, he could have been sentenced to up to 20 years of imprisonment.

In November, U.S. District Court Judge Scott Skavdahl sentenced Olsen to six years, eight months imprisonment on one count of possession of child pornography. A second count of transportation of child pornography was dismissed at the sentencing.

Besides the prison term, Skavdahl recommended he be placed at the federal prison in Englewood, Colo., participate in a sex offender treatment program, and be on probation for 10 years after his release.