Theresa M. Stoen, 43, of Genoa City, Wisconsin, (left) and Mikalah M. Stoen, 24, of Richmond.

Two women were arrested Saturday after police say they concealed the body of a deceased man, who is a convicted sex offender, in a conservation area in Richmond.

The McHenry County Conservation District Police Department responded around 8 a.m. Friday to the North Branch Conservation Area, 11500 North Keystone Road in Richmond.

McHenry County Conservation District Police Chief Laura King told Lake and McHenry County Scanner that a staff member reported finding a deceased male subject near the entrance to the conservation area.

There were no signs of apparent injury on the man and he did not have any identification on him, King said.

The McHenry County Sheriff’s Office, Richmond Police Department and Richmond Township Fire Protection District also responded to the scene and assisted with the investigation alongside the McHenry County Coroner’s Office.

Alexander Oleston, 32, of Richmond.

The man was identified as Alexander Oleston through investigative efforts.

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State records show Oleston was a convicted child sex offender. He was 32 years old and a Richmond resident.

Oleston was convicted of aggravated criminal sexual abuse in Wisconsin when he was 21 and the victim was 14, records show.

King said Oleston’s cause of death is pending an investigation by the McHenry County Coroner’s Office.

Felony criminal charges were approved by the McHenry County State’s Attorney’s Office against Theresa M. Stoen, 43, of Genoa City, Wisconsin, and Mikalah M. Stoen, 24, of Richmond.

Both Mikalah Stoen and Theresa Stoen were charged with concealment of a death and were scheduled to appear Monday morning in bond court.