A doctor in Ottumwa has been sentenced to 1 ½ years in prison and fined $20,000 for illegally distributing a prescription painkiller in South Dakota.  Authorities say 47-year-old Troy Adolfson wrote prescriptions for about 1,400 oxycodone pills and had co-workers and others fill them in exchange for money and some of the pills.  Adolfson was sentenced in federal court Monday (5/14) after admitting to a felony charge of illegally distributing drugs. The government says it doesn’t have enough evidence to prosecute anyone else in the case.  Adolfson was employed at Avera St. Luke’s Hospital in Aberdeen, South Dakota as a radiation oncologist from October 2014 through April 2017. He now works at Ottumwa Regional Health Center.