Fentress Wilson, 50, received the life sentence after being found guilty of sexually abusing an eight year old girl.
Prosecutors were able to get the life sentence because of a little used provision of Missouri law that mandates a life sentence for predatory sexual offenders.
Prosecutors were able to prove Wilson was a predatory sex offender because he had abused the victim more than once and had abused more than one child.
During Wilson's trial, three other victims testified and described sexual abuse dating back decades.
Wilson also admitted that he had been sexually inappropriate with a five year old girl when he was 15.
"This defendant's victims will live with the effects of his abuse for the rest of their lives. This verdict ensures that the defendant will also face the consequences of his actions for the rest of his life," said Platte County Prosecuting Attorney Eric Zahnd.