My question involves criminal law for the state of: Ohio and Missouri

My brother-in-law raped his sister in Ohio, she recanted but judge still convicted of 3 counts endangering a minor, and labeled him a sexually oriented offender. Later when he tried to have the record expunged, judge denied it saying it was an act of violence. Monster moves to Missouri, marries my sister, and continues his "acts of violence". In Missouri, you can not use the prior convictions of someone to prove a propensity to commit this type of crime so it is his word against hers and prosecutor does not think we can win. Ohio should have had him on the registry, documents say he was ordered to do so. Can Ohio be held responsible??