Recently is probably the key word here. He trusts you. He believes what you say.
I know the concern you have. I converted many people over the 30 years I studied with people.
But by the time I woke up they were already firmly entrenched for over a decade or more.
When I made my messy and painful exit there was no such thing as anyone else to talk to or contact.
It was pre-internet in the early 90's. Now as for this man - you know him inside-out
and try to THINK - What "hooked" him ? In many cases it is the insular, feeling
you are "joining a family" who will always love you.
In my case my own family never made me feel as safe as I felt, in belonging" IN the Beginning
That is where he is at now. This honeymoon soon dissolves to the reality of how people,
escepially women are treated. MEN have a lot of perks remember. They get to be know-it-alls ,
spiritual bullies, and they dress up like executives and insite fear in women and children.
You will need to think carefully about how to replace his new found "social life". His new found
feeling of acceptance. Its like trying to tell a young man in love the woman is not who he thinks she is.
You need to provide a new hope, and new social life among really safe people, not just smash it all
with a sledge hammer. The advantage of Crisis of Conscience is that it is written in the same soothing
low key language that the WT uses and it gently unravels the doctrines,
as does, Christian Freedom by Franz
The trouble with many other books/videos is they have an axe to grind.
You have to find the language that seduced him in the first place,
and only you as a former believer can be a judge of that. The issues with
the governing body claiming to be the 'sole channel of communication'
is really a shocking thing when you realize they are replacing Christ as Mediator.
Be careful of the various advice you may hear here.
Think this through, pray it through and proceed carefully,
don't just sit him down in front of a tape.
This was personal. It is still personal.