I'd like to ask the question of what we, as ex-JWs can do to prevent this from happening. Certainly this will be difficult if not impossible for some, if you're being shunned you can't easily communicate with active JWs. But for those of us who can, what can we say? It seems there should be some kind of common ground to work from.. Incidentally, this is one reason why I'm reluctant to attack the organization itself with everyone. For some this can no doubt be beneficial, but I'd imagine someone who's so depressed as to consider suicide would be on pretty shaky ground, and directly challenging their belief system may do more harm than good.
"It is not so much that you use your mind wrongly--you usually don't use it at all. It uses you. This is the disease." -Eckhart Tolle, The Power of Now