The comments about poor parenting are ignorant. People think they are an expert on this subject, yet probably know no one that has gone all the way and killed themselves.
I've personally known someone that was raised well. Had a loving family and many friends, yet committed suicide. Sometimes there are no explanations why someone would do this. The question of "why" will haunt family and friends for years.
To think you can put yourself in their shoes and know the amount of despair and emptiness they are feeling is foolish.
There are always reasons for why someone does something. People just don't killed themselves foe no reason, or it's just the fun thing to do---otherwise, people would be doing mass suicides daily.
Lonely, empty, these feelings, stem from somewhere, voids are created. And many times the void is created at home. People may think that they said parents raised them well, but then there is what you don't see, and the emotional component of the individual. To me, people who take themselves out of the game, before the game (life) is finished, seem to lack the "sticktoit-ness" that others have. And have this woe is me atttiude. Yet, look at women who have been raped, multilated, and yet still go on with life. Yet you have people who go thru one little small rough patch in life, and they are ready to throw in the towel.