Why does it happen?

Yes I am home and I am alone
And I lay here weeping
Weeping for those without a home
For those without a love
For those with nothing to hold on to
I weep because some give up
if we were just one second sooner
But some give up even in that second
I weep for those with tragedies
Tragedies that are burned into their minds
Burned so deep they can't sleep at night
That overwhelming pain that cant be removed
Waking up sweating unable to breathe
That same damn nightmare that occurs again and again
Yet they can't tell you about it
They can't voice that sorrow
That sorrow that is felt to the depths of their soul
It's unspeakable, unrepeatable, unimaginable
Have you ever felt something the deep
It cuts it's way smoothly through your chest
Deep deep inside so you can't escape it
How can these events occur to those so young
To those who haven't lived their lives yet
But they have felt more than some will feel forever
How does a boy so young find it in himself
Find it in himself to take his last breath
Why do we choose to allow this to continue