Not entirely agreeing. There is science that a baby fresh born has not automatically "the will" to be evil. the opinion that a child of a killer must probable have more gens to be aggresive too, is wrong. there is evidense for this, ,a long science about this theme proofed this.
As said, the nature-laws aren't "evil". "Evilness" is an "invention" by humans (it's a term only made by our morale imaginations), an animal is never evil, it functions after the nature-laws. As we are indeed a kind of an advanced animal, we learn by the environment (as animals, but in a kind of a perverted way, unfortunately), but that's still the evolution, we are entirely trapped also in this nature function, but we have indeed the ability to judge on things (what animals have not, that's the difference). But or and: If the evolution would show us, that the "evil" factor is just bad for us, and will lead inevitable to our destruction, it is possible that humans learn this by this evolution, and make it better ... theoretically at least, i'm convinced on this.
And again, as the human is agressive to a degree by nature-law, we can or could though direct this inevitable emotion to certain things, and if people must go crazy, they can fight in martial art sports games, for example. Also, this aggro-factor is needed, if we wouldn't have it, there would be less progress, it is also a motivator for the humanity, so: the agressivity in the human gen is not "evil" in its own nature, humans become "evil" through the social environment.