We cannot continue to look at killers and consider them freaks of nature who were products of nothing and causes of nothing. They encountered scarring events in their lives and they either pass them on to their children or they pass it on to other people when they terrorize them. It's a never-ending chain of pain and suffering. Likewise, it's no secret most successful people turn out the way they are. They usually have stable and supportive families and peers who placed value in learning or business or whatever.
Parents pass their traits and habits to their children.
My parents are successful and I know I'm on my way to something successful. I just feel it. I could go further and further with this, turning it into a full psychological hypothesis on the development of the living identity and personality, but I won't. Not only do I not have the knowledge necessary to do this topic justice, but the purpose of the 'Box is to throw out ideas with a little justification, letting the reader ruminate on it and come to his own conclusion on his own time. Besides, I'm lazy.