Things are out of control right now, my guess is that reaching out now would just get you dragged into what you don't want to get dragged into.
Something like, we love you and hope you find your way back to the path.
If he contacts you, that might be a good time to say what you suggested and then let it go at that.
There is no right or wrong in all this, there is just what works or doesn't for each of us.
Whatever you decide, I hope it goes well.
Hugs