Some years ago I thought that suicide was the most selfish of acts, and an easy way out. I've come recently to realize that it's impossible to judge what goes on in the minds of people close to you, let alone famous people. There is no definite "scientific law" to predict what affects someone's behaviour, and the thought process that brings them to commit suicide.
Also, there is need for a big social awakening about depression. Depression is not being very sad. Depression is not what you feel after having seen the Red Wedding on Game of Thrones. Depression happens because something in your brain doesn't work properly, it's an ilness and should be treated as such. The brain is an organ of the body like anything else, and something not working within the brain is an illness just and precisely like when your kidney isn't working, or your liver. Depressed people needs support and proper and qualified medical help and medical cures, not a walk in the woods or "trying to not be so sad". Yeah, try not bleeding so much after you've cut yourself.
I don't know how much today's interconnected society has to do with it, and how the social media "fame" of random people or the actual stardom of "famous" people can influence someone.
Most of you here know Kamelot; Roy Khan, their classic singer, left the band some years ago due to a burnout. Recently in an interview he said that he was starting to feel the pressure of performing at such a high level, and he was bothered how night after night countless fans would wait for him for autographs and pictures and that got him anxious, prone to drinking, and sleep deprived. Eventually after Wacken he decided he couldn't handle the pressure of it all and walked away, getting anxious whenever someone even tried to talk about the band.
He got away with that.... I firmly believe that another person in his place, with different walks of life and maybe with different problems, might have considered suicide, rather than "just" leaving the band and retiring to the countryside. Everyone reacts differently to problems of both fame and everyday's life, and you can't predict or try to find signs you should have seen that weren't there.
A better awareness for all the social problems is the key to try to stop it whenever possible. I believe that, while it's not that someone decides to kill themselves or to shoot kids in school just because someone else does it, in the subconcious the idea that these things exist makes these options somehow "real" and avalaible. No one thinks on wedding day "If my wife is gonna cheat on me I'm gonna kill her", but years and years of hearing of husbands killing their wives somehow makes it seem, under stress and duress, as something belonging to the list of things that one could do, while maybe in other situations it was unthinkable. Look also at terorrist attacks - 9/11 shocked me mainly because I couldn't even THINK of hijacking planes to crash them into buildings. If severe security measures would have not been implemented, I believe further attempts would have been made. Now it's easier to use trucks and that's what terrorists do, once someone got the idea everyone followed.
The problem of suicides won't go away stopping to talk and report it, so that less people may even think or remember it's an option avalaible. But as I said a better understanding of the problem, of depression, and encouraging people to reach out to a support system may help to make people remember there's a way out, when they think there is none.