Most communities have laws requiring that sexual offenders register themselves and identify their place of residence.
This wasn't done in this case, AFAIK.
Christian charity does not preclude notifying the community of the presence of sexual offenders in a place.
Since you're short of significant facts, perhaps you'd like to check.
We have those laws in Wisconsin, and apparently they have them in Florida, where Jeb Bush's Administration has done a WUNNERFUL job of keeping up with things.