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Press Release

Sisseton Man Sentenced to 10 Years in Federal Prison for Abusive Sexual Contact

For Immediate Release
U.S. Attorney's Office, District of South Dakota

SIOUX FALLS - United States Attorney Alison J. Ramsdell announced today that U.S. District Judge Charles B. Kornmann has sentenced a Sisseton, South Dakota, man convicted of Abusive Sexual Contact. The sentencing took place on June 3, 2024, in Aberdeen, South Dakota.

Lincoln Duane Wanna, age 40, was sentenced to 10 years in federal prison, followed by five years of supervised release. He was ordered to pay $100 as a statutorily required special assessment to the Federal Crime Victims Fund.

Wanna was indicted for Abusive Sexual Contact and Possession of a Firearm by a Prohibited Person by a federal grand jury in July of 2022. He pleaded guilty to Abusive Sexual Contact on November 20, 2023.

The conviction stemmed from Wanna's repeated sexual abuse of a juvenile female from the time she was seven years old until she was 12 years old.

This matter was prosecuted by the U.S. Attorney’s Office because the Major Crimes Act, a federal statute, mandates that certain violent crimes alleged to have occurred in Indian country be prosecuted in federal court as opposed to State court.

This case was brought as part of Project Safe Childhood, a nationwide initiative to combat the growing epidemic of child sexual exploitation and abuse, launched in May 2006 by the Department of Justice. Led by the U.S. Attorneys’ Offices and the DOJ’s Child Exploitation and Obscenity Section, Project Safe Childhood marshals federal, state, and local resources to locate, apprehend, and prosecute individuals who exploit children, as well as identify and rescue victims. For more information about Project Safe Childhood, please visit

This case was investigated by the FBI and the Sisseton Wahpeton Law Enforcement. Assistant U.S. Attorneys Jeremy R. Jehangiri and Elizabeth A. Ebert prosecuted the case.

Wanna was remanded to the custody of the U.S. Marshals Service to continue serving his sentence.

Updated June 5, 2024

Project Safe Childhood
Indian Country Law and Justice