Sex Offender Sentenced For Failing To Register

MUSKOGEE, OKLAHOMA - The United States Attorney's Office for the Eastern District of Oklahoma announced that Nicholas Hammer, age 47, formerly of Tahlequah, Oklahoma, was sentenced to thirty-eight months in prison for one count of Failure to Register as Sex Offender.

The charge arose from an investigation by the United States Marshals Service and the Cherokee Nation Marshal Service.

On March 25, 2025, Hammer pleaded guilty to the charge. Hammer was convicted of Rape-First Degree on January 4, 2001, in the State of Oklahoma and is required to register as a sex offender. According to investigators, Hammer failed to register and update his registration from October 10, 2024, until November 4, 2024, despite entering, leaving, or residing in Indian country, within the Eastern District of Oklahoma.

The Honorable Ronald A. White, Senior Judge in the United States District Court for the Eastern District of Oklahoma, presided over the hearing. Hammer will remain in the custody of the U.S. Marshals Service pending transportation to a designated United States Bureau of Prisons facility to serve a non-paroleable sentence of incarceration.

Assistant U.S. Attorney Emily Wittlinger represented the United States.