If your close with him just be a friend. talk to him in private and work in your concerns. maybe this could give you a common interest and help him with his situation. i would fear that taking it away could reinforce any negative feelings by showing a lack of faith by friends and family. the fact that he is on medication should be a concern at least until he has a long term knowledge of how it is going to effect him. be aware, be there, and work together. If someone truly wants to end their life gun or no gun they will find a way. i may take some flak for this but i feel that it is my right to check out if i want to....... i mean really if the time comes that i can no longer care for myself i would rather go on my own terms than die in a nursing home.