Rapid City Man Found Guilty of Failure to Register as a Sex Offender

RAPID CITY - United States Attorney Alison J. Ramsdell announced that U.S. District Judge Karen E. Schreier has convicted Ryder White Hawk Sierra, age 33, of Rapid City, South Dakota, of one count of Failure to Register as a Sex Offender following a court trial in federal district court in Rapid City, South Dakota. The verdict was returned on August 9, 2023.

The charge carries a maximum penalty of 10 years in custody and/or a $250,000 fine, a minimum of five years up to life of supervised release, and a $100 special assessment to the Federal Crime Victims Fund.

Sierra was indicted by a federal grand jury in March of 2023. 

The charge related to Sierra failing to register and update his sex offender registration under the Sex Offender Registration and Notification Act between January and March of 2023.

This case was investigated by the U.S. Marshals Service. Assistant U.S. Attorney Megan Poppen prosecuted the case.

A presentence investigation was ordered and a sentencing date was set for October 25, 2023. The defendant was remanded to the custody of the U.S. Marshals Service.