Are you on the edge of a town?
If so I would look to a predator of some kind sneaking around where you live.
Coyote’s are a prime suspect you can go out side and hear them them howl. A pack of feral dogs is another possibility. Maybe a black bear. In Ohio I doubt it is a mountain lion
People are going to laugh at this one if they haven’t seen one but it could also be a Sasquatch, they are in Ohio and dog are, for good reason, scared of them.
Nope I am in the middle of the downtown business district (though it's more of a ghost town in this section)