Chief Judge Roberto A. Lange, U.S. District Court, has sentenced a man from Sioux Falls, South Dakota, convicted of Failure to Register as a Sex Offender. The sentencing took place on January 20, 2026.
Louis Leroy Butcher, 58, was sentenced to one year and six months in federal prison, followed by five years of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund.
Butcher was indicted for Failure to Register as a Sex Offender by a federal grand jury in September 2025. He pleaded guilty on October 14, 2025.
Butcher was previously convicted of a federal sex offense. Because of his prior conviction, he is required to register as a sex offender. Butcher was aware of his obligation to register and to keep his registration current with officials within the county in which he resided. Nonetheless, from late July through August 2025, Butcher knowingly failed to register and update his registration.
This case was investigated by the U.S. Marshals Service. Supervisory Assistant U.S. Attorney Connie Larson prosecuted the case.
Butcher was remanded to the custody of the U.S. Marshals Service to serve his federal sentence.
This case was brought as a 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. Attorney’s Offices and the DOJ’s Child Exploitation and Obscenity Unit, Project Safe Childhood marshals federal, state, and local resources to better locate, apprehend, and prosecute individuals who exploit children via the Internet, as well as to identify and rescue victims. For more information about Project Safe Childhood, please visit https://www.justice.gov/psc.
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