It is important that you protect your child. Protecting your child should be your main objective when making your decision. If this person is harming your child or could harm your child, you need to gather as much evidence as you can of his behavior, and get out of the situation as quickly as possible. You need to have enough evidence to prove to the court that the visits have to be supervised because of the individual behavior. All in all, never jeopardize the safety of your child. You need to protect your child. If you can afford it, get a lawyer. If not, that's okay, just make sure to have your evidence if you have to go to court. If there is a local church in your area or some other support group, join it as this is going to be a difficult time in your life, and you will need others around you to help keep you strong. Best of luck to you and your child, and please remember that children cannot protect themselves so we as parents have to protect them, and keep them safe. May god be with you and your child. Take care...