We may do some sins that have only been kept in darkness. Don't judge the person who sinned. Maybe he was keeping it hidden,too, until it could not be hidden anymore. Let us understand now the perspective of life. Then, if your have not known it you have been deceived and not have gotten the benefit from knowing of it.
Life goes on.
There are always faults and flaws because we are not perfect. Mankind learn to live in joy because of this imperfection. We don't actually seek for perfection, because it is not attainable. If there is change then there is no perfection, as well as, there is no perfection because there is change. And there is nothing permanent but change.