Regional News: Tulsa repeated sex offender draws 27-month federal sentence for registry violation
- Dennis McCaslin
- 10 minutes ago
- 2 min read
TULSA, Okla. (January 13, 2026) – A 53-year-old convicted sex offender with a decades-long criminal history was sentenced today in federal court for failing to register as required, after investigators discovered him living in a prohibited apartment near a school in Tulsa.
U.S. District Judge Sara E. Hill sentenced Mark Joseph Vossler to 27 months in federal prison, to be followed by five years of supervised release. Upon completion of his sentence, Vossler will again be required to register as a sex offender
.The case was announced by U.S. Attorney Clint Johnson for the Northern District of Oklahoma.
Vossler pleaded guilty to the federal charge of failing to register as a sex offender between March and July 2025, stemming from an indictment returned by a federal grand jury in August 2025.According to court documents and the U.S. Attorney's Office, Vossler's history of sexual offenses dates back more than three decades:
In 1994, Vossler was convicted of sexual battery after forcing a 19-year-old woman to have sex while holding her down. He received a five-year deferred sentence and was ordered to complete 80 hours of community service. He later violated probation terms and served five years in the Oklahoma Department of Corrections.
In 2013, Vossler committed another sexual assault, grabbing a victim by the hair while driving, claiming to have a gun and ties to the Universal Aryan Brotherhood, and threatening to kill her if she refused sex. He pulled over and assaulted her. In 2015, he pleaded guilty to sexual battery, received a five-year sentence, and was required to register as a sex offender.
Court records further show Vossler has multiple prior convictions for failing to register: in 2006, 2016, 2020, and 2023.In the most recent case, Vossler reported to authorities via the Supplemental Nutrition Assistance Program (SNAP) that he was homeless. However, U.S. Marshals Service investigators located him residing in an apartment in Tulsa that violated sex offender residency restrictions due to its proximity to a school.
Vossler will remain in federal custody pending transfer to the U.S. Bureau of Prisons to begin serving his sentence.The U.S. Marshals Service conducted the investigation, with Assistant U.S. Attorney Michele Hulgaard prosecuting the case.
