A Butte man was arrested Friday night after police responded to a call of a disturbance and possible sexual assault in an apartment on the 200 block of West Park Street around 10:40 p.m.
Police said witnesses told them Dennis Schadler, 33, was drinking with a man and a woman in the apartment. Schadler allegedly entered the bathroom with the woman and tried to sexually assault her.
According to Silver Bow County Undersheriff George Skuletich, Schadler told police he believed he had paid to have sex with the woman, which police said the woman denied.
Schadler was booked into jail for felony sexual assault, purchasing prostitution, and felony probation violation.
Schadler pleaded guilty in 2010 to felony attempted robbery after he was knocked unconscious by Burger King employees during a botched robbery. He was sentenced to 60 months with the Department of Corrections.