The Human Nature
Most people think that a person commits a crime out of choice, and that is partly true, but at the same time that is human nature something we cannot escape or destroy. We are all bound to it and are enslaved by it. You choose to kill, but thousands others did it to, it is impossible that people will not do it. We humans refuse to be the good beings, but instead choose the path of violence. We cannot break this path in this world, we can only try to fix our errors.
