Oh common... I really cant feel anything towards people like this. If you cant value life as it should be then you dont deserve it IMO. 21 a fragile age?!?!?!?! Thats the age when you should actually have the best time of your life, and when you should be the most confident in yourself... every age is "fragile" ex: 12-15 puberty, 40-50 menopause :P
Anyways, I dont want to bash your friend until I dont know mostly nothing about him, maybe he had a traumatized childhood or a terrible accident, I dont know, but as somebody whom already went trough many s*** Im certain of one thing: life is the most precious gift youl ever get, and DONT try to end it faster as it should...