Sioux Empire Today

A Rapid City man has been sentenced to nearly three years in federal prison for failing to register as a sex offender, according to an announcement from U.S. Attorney Alison J. Ramsdell. U.S. District Judge Camela C. Theeler handed down the sentence on August 7, 2025.

Dorian Lester, 29, received a sentence of two years and nine months in federal prison. He will also serve five years of supervised release and must pay a $100 special assessment to the Federal Crime Victims Fund.

Lester was indicted by a federal grand jury in April 2025 and pleaded guilty on May 19, 2025.

According to authorities, Lester is required by law to register as a sex offender for life due to a previous conviction for sexual abuse of a minor involving a 12-year-old victim. Federal law mandates that sex offenders update their residence information with the registry within three days of moving. After being released from custody on another sentence, Lester did not update his registration with his current address, which constitutes a violation of federal law.

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

“Lester was immediately remanded to the custody of the U.S. Marshals Service,” stated the release.