Rapid City Man Sentenced to Nearly Three Years in Federal Prison For Failing to Register as a Sex Offender

RAPID CITY - United States Attorney Alison J. Ramsdell announced today that U.S. District Judge Camela C. Theeler has sentenced a Rapid City, South Dakota, man convicted of Failure to Register as a Sex Offender. The sentencing took place on August 7, 2025.

Dorian Lester, 29, was sentenced to two years and nine 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.

Lester was indicted for Failure to Register as a Sex Offender by a federal grand jury in April 2025 and later pleaded guilty on May 19, 2025.

Lester is required to register as a sex offender for life because he was previously convicted of sexual abuse of a minor, where the victim was 12 years old. Federal law requires a sex offender to update his residence to the sex offender registry within three days of changing residence. Lester was released from custody from a separate sentence and failed to update the sex offender registry with his current residence. It is a violation of federal to fail to register as a sex offender.

This case was investigated by the U.S. Marshals Service. Assistant U.S. Attorney Benjamin Schroeder prosecuted the case.

Lester was immediately remanded to the custody of the U.S. Marshals Service.