EAST ST. LOUIS — A St. Louis man was sentenced Wednesday to two years in federal prison for failing to register as a sex offender.
Frederick Buettner, 42, of St. Louis, also was sentenced in federal court to five years of supervised release. His sentence was ordered to run in addition to his sentence for violating the terms and conditions of mandatory supervised release on his Illinois sex offense.
Evidence showed Buettner was convicted of predatory criminal sexual assault of a child in Madison County in 2005, sentenced to 10 years in prison, and released on mandatory supervised release on May 24, 2013. Buettner was placed in a halfway house in East St. Louis. In July 2013, Buettner cut off his electronic leg monitor and fled. He was apprehended in St. Louis on June 30.
The case was investigated by the U.S. Marshals Service. The case was prosecuted by Assistant U.S. Attorney Laura Reppert.