Greyowlsl,
Although a bit older, I am a father of young children (3 under 4) and this changes your perspective on things. Even as an atheist, I am happy to believe in the concept of evil (in my terms innate 'badness').
Thankfully, the horror stories are rare and so they make the news (if they were common, we wouldn't be told about them) but people do extraordinarily bad things to others, never defensible, but it is at a whole different level when these immoral things are done to the defenceless, such as children.
You are a young guy and, if you are lucky, will not have had too many horrible things in your life. I haven't done badly over my life, but as you move through the world, you meet people who have seen evil first hand. Be alive to the fact that it exists but don't let this knowledge prevent you from living your life to the full.