My brother took his life in 82... 37 years old...brilliant beyond all comprehension.. Witty, very good looking, self employed and unexplainably despondent.... I tried to help..parents tried to help...
I strongly urge you to contact the local chapter of Suicide Prevention....neither you nor I are equipped to help or for that matter accurately determine the gravity of the situation....I wish I had made that call. I would rather harbor guilt over that contact than to spend the 17 years wondering ...........
One of the things that is wholly a human trait is hope.. that being gone nothing else will matter..
Next I strongly recommend reading ..Allen Watts "The Wisdom of Insecurity" I believe from the 50's but as relevant today..
I wish you and your friend peace.. Jefe