Nature or nurture is a recurring question that lingers on the minds of many scholars. It is an age-old question and will never be anything more than an opinion. A person is not born malevolent.
A person cannot and will not be born evil. When you are born you have not been fed the waste that society creates and you have not been introduced to sin. If you have not been introduced to something then you cannot possibly create it.
When a child is born it is the most pure a person will ever be. When that child grows it takes in every action that it sees. A child's brain is very pliable because it is growing rapidly. That is how people come to create evil.
Also, I don't think a person can truly be evil. They can commit evil deeds, but I will never view someone as purely evil. In order to commit evil you would have had to been in a traumatizing experience to cause you to act out in such a way.
A bad environment causes people to commit malevolent and malignant deeds. I believe that the media is one of the biggest causes of this. They force the term "sex sells" down our throats with commercials that wouldn't have been appropriate forty years ago.
Another cause of an evil deed is quite the opposite of the media. Religion, believe it or not, is another cause. If you're forced into a strict religion that sends everyone that isn't your religion to hell, it causes rebellion against those morals. Most religions have the same basic trinity and ideas; people striving to better their lives and become pure. Therefore any one religion shouldn't damn another.
Society in general causes people to become livid and some people act on it by taking human life. One third of homeless people are veterans, but people turn their noses up in disgust when they are just asking for spare change. And those same people have the nerve to have yellow ribbons that say, "Support the Troops". They flaunt them as if they are making a difference.
Sometimes I can almost understand doing something deemed as evil. But I wasn't born with knowledge or feeling, so it must be nurture.
Kindell.