Williston man pleads not guilty to GSI charge

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A Williston man pleaded not guilty to a gross sexual imposition charge.

Prosecutors say Wilder Petersen raped a 14-year-old girl last spring.

The 23-year-old is being charged with felony Class AA felony gross sexual imposition.

If convicted, Petersen could spend the rest of his life in prison.

He is expected to be back in court on June 21.