Why, oh, why...

I can't quite get my head around the notion that someone would actually feel that there was no other way to deal with their life than to end it with their own hands.  

I'm not talking about someone with a terminal disease - I'm talking about someone with from all signs a decent life.  A good wife, good kids, good friends...then BAM! gone.  What was so bad that they couldn't talk to somebody?  One of their friends?  

So many questions left unanswered...never to be known.  What signs did we miss?  What lessons can we learn to keep this from happening again?  This is happening with frightening frequency.  These are not children doing this - these are grown men in their 40's and 50's.  What is happening here?  This is a problem that needs to be addressed.