From what I hear depression is a bitch. When someone says they want to kill themselves you take it seriously.
Depression is no joke. I have been there more than once. I told my story on here a while ago, in the hopes that just one person who might think it's just a question of "cheering up" or "riding it out" might get help.
It doesn't matter how much money you have, how easy your life might seem on the surface, or how many good things you have that outsiders think you should be able to appreciate. When you're in the throes of a real depression, you don't see those things at all. You are not thinking rationally about anything. You are in constant physical and mental pain. You feel like there is no way out and no end to the misery, and it is difficult to try to explain what you are feeling to others. You struggle to find enjoyment in anything. In a room for of people, even friends, you feel alone, and overwhelmingly so. The saddest thoughts have a way of invading your mind at the most random intervals. You don't react normally to outside stimuli. Concentrating on even menial tasks can be trying. A sad song on the radio can put you into a funk for days. You can find yourself fighting back tears for no reason at all, no matter how "well" your life might be going, no matter how sunny the skies above.
Hopefully, DiPietro got help. Like mrthemike said, when someone says they're suicidal, you don't wave it off as a ploy for attention, or someone feeling sorry for themselves. Yes, some people will do it as a cry for attention, but several others say it with the intention of really following through.