After pleading guilty in two sexual abuse cases, Michael Adam Koch, 21, of Sumner, will serve up to 10 years in prison and will have to register as a sex offender for the rest of his life, although he has the possibility of parole.

In Chickasaw County District Court, Koch pleaded guilty on Aug. 9 to lascivious acts with a child (a Class C felony) and was sentenced to up to 10 years in prison. A $1,370 fine and surcharge were suspended, and second sex crime charge was dismissed, in accordance with the plea agreement reached with prosecution.

In this case, he sexually abused a pre-teen girl between May 2020 and July 2021, court documents say.

The same prison term was handed down in a Bremer County case, and he will serve it concurrently.

Koch pleaded guilty on Oct. 3 in Bremer County District Court to third-degree sexual abuse (Class C felony). He received credit for time served and again was ordered to register as a sex offender. A $1,370 fine plus surcharge was suspended and a second third-degree sexual abuse count was dismissed as part of the plea agreement with prosecution.

He engaged in sex with a 15-year-old girl in April 2022 when he was 20, court documents say. The Sumner Police were alerted to this when a person turned over text messaging from Koch admitting it.