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Date: 06-14-2024

Case Style:

United States of America v. Windelyn Valdo Shoulderblade, Jr.

Case Number: 1:23-cr-00141

Judge: Susan P. Watters

Court: The United States District Court for the District of Montana (Yellowstone County)(

Plaintiff's Attorney: The United States Attorney’s Office in Billings

Defendant's Attorney:

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Billings, Montana criminal defense lawyer represented the Defendant charged with failing to register as a sex offender

Oklahoma sex offender sentenced to seven years in prison for failing to register in Montana

Windelyn Valdo Shoulderblade, Jr., 33, of Broken Arrow, Oklahoma, refused to comply with the Sex Offender Registration and Notification Act (SORNA), while continuing to commit sex offenses and exhibiting public displays of sexual deviancy. By not registering as required by law, Shoulderblade posed a constant threat to community safety. But not anymore, as he will spend the next seven years in federal prison due to aggressive and effective work of our federal prosecutors, the U.S. Marshals Service, the Northern Cheyenne SORNA Compliance Office, and Yellowstone County Sheriff’s Office,” U.S. Attorney Laslovich said.

“Since the passage of the Adam Walsh Child Protection and Safety Act in July 2006, the U.S. Marshals Service, nationally and in Montana, has vigorously pursued those who have failed to stay compliant with the legal requirements of their registration. We will continue to do so. This sentence was the culmination of some great collaboration among several federal, tribal, state and local law enforcement entities and is a good example of how, when all of us work together, we can make our communities a safer and better place to live,” said U.S. Marshal Craig Anderson.

In court documents, the government alleged that Shoulderblade was convicted of felony sexual battery in Oklahoma in 2014 and was required by law to register as a sex offender under SORNA. The government further alleged that from about December 2022 to November 2023 in Montana, Shoulderblade knowingly failed to register and update his sex offender registration. Since his 2014 conviction, Shoulderblade continued exhibiting predacious behavior while refusing to comply with his sex offender registration requirements. While out of compliance with his registration requirements, Shoulderblade spent years committing additional sex crimes. Shoulderblade moved to Montana in December 2022 and had contacts with law enforcement in Billings and on the Northern Cheyenne Indian Reservation. Despite instructions to register by a Northern Cheyenne SORNA compliance officer and the Yellowstone County Sheriff’s Office, Shoulderblade never did. After relocating to Billings, Shoulderblade had frequent, near-weekly contact with local law enforcement between March 2023 and July 2023.

The U.S. Attorney’s Office prosecuted the case. The U.S. Marshals Service, Northern Cheyenne SORNA Compliance Office and Yellowstone County Sheriff’s Office conducted the investigation.


Defendant was found guilty and sentenced to seven years in prison, to be followed by 15 years of supervised release

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