It's dark enough for me. I'd try and top it, but then that would result in gratuitous violence, so... this domain for dark works is all yours.
I have a character who's an eleven-year-old boy in a pre-technological world (a horse-drawn wagon is as advanced as it gets in this world). He and his father have walked hundreds of miles from their home to trade with a distant city-state, and the father dies, accidentally, trying to save the boy during a natural disaster. They come from a simple society with a very strong tradition of honoring the dead, but the boy doesn't know his society's rituals yet (he's too young to have participated), so he feels responsible, but he doesn't know what to do. The fact that he can't bury his father properly torments him with guilt, over and above the loss he feels. I know it's not as cruel and badass as some of the stuff you guys have done to your characters, but it's damn hard on this kid.
The psychologically dark stuff is my favorite. What you've done to this character is very dark, make no mistake.