Is it normal to want to murder somebody?

This is a fairly new desire I have been feeling. I fantasize about murder almost everyday, whether it's tearing limbs off, slitting throats, choking people, stabbing people, or torture, it's recurring. It isn't necessarily toward people that I hate or have betrayed by, because in some way I sort of hate everybody. Strangely enough, these urges are toward anybody but my family. I have future plans; I get good grades and already have a career thought out. I am afraid that I will give in to these desires one day, and getting away with murder is nearly impossible. I have had dreams about vivid, brutal murder before, but they aren't too common. One of my recent ones was about choking children. I know it's wrong, but I don't feel like it is. I don't want to like it, but I do. I have seen photographs and videos of murder before, and it never really triggers a reaction from me. I am a white female, not on medication, I have not been diagnosed with any mental disorders, I have never been through any trauma or abuse, but I feel like something is wrong with me. I am too afraid to tell a professional, but I have a feeling that I have some sort of mental disorder. I apologize for how poorly written and scattered this was, collecting my thoughts is difficult. Please take this seriously, this is not a joke and I am legitimately asking for your opinions. Thank you.