Is this a really sick fascination?

I'm really fascinated with stories and pictures of brutal murders. Sometimes it makes me sick, especially the story about the guy in Germany who killed a man because of his for slaughtering and eating his lover. But the stories of the Salem Witch Trials and stuff like that is really interesting. I also love gory, realistic horror movies. The sicker the better. I don't want to kill anybody, I just like reading about it. Is this really bad or abnormal? Does that mean I will be a serial killer when I'm older? I'm 15 by the way.