The heart of some,
Is deceitful above all things,
And desperately wicked.
Who can know it?

A sane man gets a gun;
And in a matter of seconds,
Twenty are dead.
Why exactly?

Due to the upbringing,
Many grow into monsters.
As a child may grow into his father's jacket,
So do children grow into monsters (like their parents).

So, therefore, it may seem genetic.
Or appear to be in a certain environment.
For as we pass down looks,
We pass down that character to the next generation.