Misty Gust, a pegasus colt, had a pretty good life. Until his family moved to the town of Ponyville. Bullies tormented him, bringing him to the brink of insanity. He then turns into a murderous pony, killing other ponies in his wake.

This is his story.

Note: This is my take on the story. I know there is probably other stories just like this one, but I'm willing to give it a try anyways.