Yeah, that would be a tricky decision to make, @
beauflow. This awful world puts us in all sorts of unwanted situations.
At the end of the day, you did what you needed to do, and it's good because the welfare of children came first, regardless. And if the guy in your building has a conscience about his sex offending, then he should understand why anyone would feel concerned. As you say, if anything happened, well, that would be a terrible weight to carry around for you.
I don't think what you did was wrong, no. And the conflict you feel is natural, too. It's understandable.