Most would view John Doe as a monster, or a man with a heart of stone... and perhaps they are right. However, within many stones, a gem is hidden... and so, he is given a chance to redeem himself by doing the "dirty work" that others couldn't tolerate.

But will he be able to keep his heavily unstable mind in check, and adapt to Pony Culture just like his younger sister, Jane Doe, did?

Or will he suffer a relapse that could negatively affect Jane Doe's little Ditzy Doo's future?

WARNING!
The following story is, perhaps, one of the darkest stories I've written. Under no circumstances do I encourage those with a weak stomach to proceed, unless you're willing to muscle through the mind and heart of, as the title would imply, a Psychopath.

That being said, he will be High-Functioning... but even then, he will also have his limits...