Acting United States Attorney Robert C. Stuart announced that Robert Tjepkema, 53, was sentenced today in Lincoln, Nebraska, to 3 years in prison by United States District Judge John M. Gerrard, for failure to register as a sex offender. In addition to his prison term, Tjepkema will be required to serve 8 years of supervised release.
In 1992, Robert Tjepkema was convicted of a sex offense in Minnesota which, under state law, required him to register as a sex offender for 10 years. In 2001, he was convicted of failure to register in Minnesota and sentenced to 9 months imprisonment. Under Minnesota law, the original 10-year registration period began anew when he was released, plus an additional five years for the new conviction, extending his registration requirement under state law to October of 2016.
Tjepkema then moved to Florida. In 2007, he was convicted of failure to register and sentenced to 35.5 months incarceration. His registration requirement under state law was then extended to February 23, 2029.
Under federal law Tjepkema is a Tier III sex offender with a lifetime registration requirement.
Tjepkema began living in Nebraska in 2010. He did not register as a sex offender prior to his arrest on the instant charges in early March, 2017.
This case was investigated by the United States Marshal’s Service.
Department of Justice
Office of the U.S. Attorney
District of Nebraska