To you. To them, who knows? If they want to be helped, great. If they do not, it's not your job to impose "help" upon them. It's not up to you to determine how long another human being on this planet lives, regardless of your personal, emotional attachment to them. This guy was 29 years old, an adult, he ought to be able to make his own decisions.
That you're reacting entirely emotionally? No, that's quite clear. The problem is that so many people seem to have a major problem with over-emotionalizing, any time anyone dies, they freak out like it's the end of the world. In reality, it isn't about someone else's demise, it's about their own fear of death, projected onto others.
But you're the one projecting onto him. Apparently he saw a reason to die because he killed himself. He didn't do it for no reason. Just because you don't agree with his reasons doesn't mean those reasons didn't exist, or were not valid to him.
But you only have control for so long, after which, they're adults and get to make their own decisions. Some people don't want to go on living. That's just the way it is. Some people just act stupidly and end up dead as a result. That's also just the way it is. My grandfather died in his 60s because he was a diabetic and refused to take care of himself. My father died in his 60s because he spent a certain amount of his life smoking (we don't know for sure how long, he hid it for decades) and got cancer. As much as I miss them both, I have no right to force my views on either of them and force them to act in accordance to my wishes. They were adults, they made their own choices, they paid the consequences for them.
That's really the issue, so many people are terrified of death that whenever anyone dies, even someone they've never met, they freak out instead of just accepting the inevitable conclusion that death is a natural part of life. I get that a lot of people have a strong emotional reaction to the thought of dying, but to take that to the extreme of claiming that other people, people they don't even personally know, have to live by a particular set of dictates that keep them alive, even if they don't want to be, just so the individual can feel good about not dying, is a bit absurd, wouldn't you say?