A good plot
I adore this plot, t's very familiar to me in a sense that I've kinda sat in the theater thinking about things like that when I was a teen. So, I give a clap for the good idea.
Read the story now
However, the story was greatly rushed, and where it started out good, it just tumbled into a watered-down version of a great vision. I'd like this if it were revised and made a bit longer. The pov was a good idea, it allows you to understand the killer without having to explain their whole history. But at the same time I would have liked to see something like that. How'd he/she get started? Why? Little things, ya know?
I think that punctuation, grammar, and sentencing should be better looked at a second time. But I encourage this story, because it's a good plot.