need advice

So if you knew someone that was a victim when they were a minor. They pressed charges (contrib to the delinquency/dependency/child- the actual charge) on an adult male for preforming an sexual act on them and four years later a dna test proved they have a child with that person. Now the court was to set up child support because the dude is out of prison. (prison time was due to multiple felonies on his record of selling drugs) Usually when child support is established visitation is also. Why this man isn't on the sexual predator list? Where he would need to check in periodically? Why should he be able to attain visitation rights? Even if its supervised or not. He knowingly knew the victim was under age and malnipulated her. When he originally met her through a family member she was thirteen & sixteen when she got pregnant (he was 42). I stating this for the awareness of the situation. Why is it ok and the system of the courts to sweep under the rug. When the charges and proof starring them in the face?