Frank White Thunder Sentenced for Sex Offender Registration Violation

Frank White Thunder, a 29-year-old man from Rapid City, South Dakota, was sentenced to 15 months in federal prison on February 6, 2017, for failing to register as a sex offender, a violation of federal law that landed him back behind bars and under strict federal watch.

U.S. District Judge Roberto A. Lange handed down the sentence after White Thunder pled guilty on November 30, 2016, to one count of Failure to Register as a Sex Offender. The conviction stems from his disappearance from supervision and the failure to update his registration between April 21, 2016, and May 17, 2016—during which time his whereabouts were unknown to authorities.

White Thunder’s criminal history dates back to April 2008, when he was convicted of Abusive Sexual Contact, a conviction that mandated lifetime registration under the Sex Offender Registration and Notification Act (SORNA). Despite this, he again violated registration requirements in February 2012, resulting in a prior conviction for the same offense and a court order to comply moving forward.

After being released from custody on April 5, 2016, White Thunder initially registered as required. But within weeks, he vanished. His failure to maintain current registration triggered a federal investigation led by the U.S. Marshals Service, which treated the case as a high-priority fugitive matter due to the nature of his underlying offense.

The U.S. Attorney’s Office, led by Assistant U.S. Attorney Kirk W. Albertson, prosecuted the case following a federal grand jury indictment on May 17, 2016. White Thunder’s pattern of evasion and disregard for court-ordered obligations factored heavily into the sentencing decision, prosecutors said.

White Thunder was immediately taken into custody by the U.S. Marshals Service following sentencing. He will serve 15 months in federal prison, followed by five years of supervised release, and is required to pay a $100 special assessment to the Federal Crime Victims Fund. Authorities emphasize that compliance with sex offender registration is not optional—it’s the law.