What a fantastic and moving story. This reminds me so much of my own thoughts as a teenager. I had decided that I was going to let Jehovah kill me as I didn't want to spend eternity in paradise without my loving 'worldly' family - especially my Dad. This meant the the concept of paradise became tainted for me as it would involve possibly having to watch those I care about dying a horrible death simply because they were not JWs.
This was frightening enough for me as a teenager, I can't even begin to imagine the impact on a small child. This use of fear tactics is morally and ethically repugnant but unfortunately commonly used. We had a young child in our congo whose party piece was to tell people that if they didn't take the magazines then they would die. Thankfully I have heard that this family has escaped the clutches of the org, but these are the kind of things that become deeply ingrained in your memory.
I applaud you for how you have handled a very difficult situation, I hope that your approach can help others.
Now - if your team could play as well as you write...... ;)