A federal judge in Missouri has sentenced an Ottawa man to serve 15 years in prison without parole as part of a child sex trafficking sting operation earlier this year.

Richard J. Oflyng, 32, a truck driver from Ottawa, in June pleaded guilty to attempting to entice and obtain a child into commercial sex acts.

A federal task force arrested him in March 2009 after he responded to an ad on the Internet site, Craigslist, that advertised “little girls available.” According to his plea agreement, Oflyng said he wanted to have intercourse with an 11-year-old girl.

He made an appointment on March 6 and paid an undercover officer $80 once he arrived at an undercover location in the Kansas City area, where he was arrested.

The case was part of the Human Trafficking Rescue Project, a sting operation targeting local customers who solicit pimps to engage in commercial sex acts with children. Federal law enforcement officers said no real children were involved in the sting.