South Dakota's Department of Corrections is alerting the public about an inmate who will be released from prison later this week.
Sixty-four-year-old William Duncan was sentenced to two 15-year sentences in 1994 for sexual contact with a child under the age of 16.
That sentence is set to expire this Friday. But authorities say Duncan refused to take part in sex offender treatment while behind bars and fear he could re offend.
Duncan has not said where he plans to live once released.