@flipper, this known pedophile was not out in service, though he does go. The reason I say he's a known pedophile is that he molested his cousin's son at 18 years old. His uncle kept him from getting arrested. He has made comments at the meeting about controlling his urges.
I had become a family friend in the last couple years and when I learned that (from them), I was not out yet. Just sickened by it and stuck with how to deal with it given the political correctness in the JW congregation. "Be loving, hospitable, forgiving..."
I am out now and I want to start a family. He has gone up to talk to my wife at meetings and PMed her on Facebook. I was not hospitable to him. I made it very clear that he is not welcome here on his own. Because whether we like it or not, sometimes you have to be a protectionist asshole.
Now, to answer your more general question about sex offenders out in service:
https://youtu.be/W4a9kJqWGIE