If the notification you received does not have the offender’s name, call back the sheriff’s office and ask for it. You can then google it and likely find out the details of the offense from archived news articles.
And, because criminal records are also public record, you can get records of the original complaint and the trial.
Once you have a name, try the Ohio sex offender registry:
http://www.esorn.ag.state.oh.us There’s a link to recently released offenders with their expected address. So he might be in there already and you can find him without knowing his name, because you know your neighborhood.
It’s very important you find out the nature of the crime and his history. You don’t know if his preferred victim is adult or child, male or female. Until you know what to protect against, you won’t know how to best allocate your energies. .
Who owns the house or apartment? That might be an angle to try—the property owner may not be aware of the new tenant’s history and there may be an out in the lease if there were omissions or outright lies in disclosure. (I’m assuming he’s renting.)
I know what my neighborhood would do. While we were working all angles to get him out, we’d have round the clock eyes on that house. Any time he so much as opened a window, a text would go out to everyone on the list. Knowing where he is at all times is as important as keeping your kids and your wives close.
It doesn’t have anymore info that the postcard they sent out except that it looks like there are 2 charges of the rape there with the level 3 specification. I have his name and address and all of that.