I would be very careful with what I share with his family. I would advise them that it is crisis and one that only he can work through. Please do not share this site w/them for you do not need for them to slip up and tell him what you have provided to them. This is your safe haven.
Also, please keep in mind that his crisis is being driven by depression, but the depression is cause by unresolved childhood issues. This happened when his emotional growing period was stunted by something in his life. We don't know if something happened between him and his father or mother or both of them.
Tread lightly.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.