The Killer Rarityverse

The Killer Rarityverse is a set of, currently, five stories about Rarity as a serial killer dating back to a self-defense murder in her foalhood.

Style
The stories are all written in third person from the perspective of the ponies in question. The Secret Life of Rarity is told from Rarity's perspective, The Public Life of Sweetie Belle is told from Sweetie Belle's perspective, etc.

Summary
The story is about Rarity as a serial killer, a mentality brought about by a self-defense killing of three bullies when she was a filly. She becomes addicted to the power rush she gets when she holds another pony's life in her hooves.

Throughout the course of the story, she kills over 100 beings including, but certainly not limited to, Scootaloo's parents, Trixie, Gilda, the Diamond Dogs who kidnapped her, Flim and Flam, Iron Will, and a decent amount of OCs.

As the story continues and more ponies around her begin to find out, including Twilight, Sweetie Belle, Applejack, and even Princess Luna, she loses her grip on reality and she hates herself and what she does more and more. In the first third of the story, she only kills to protect those she loves, specifically those who hurt the other members of the Mane Six. By the end she becomes much more indiscriminate with her kills, leading up to the point where she kills Iron Will in public and is caught by the royal guards. She is executed by lethal injection not long after her arrest.

Other stories
The Public Life of Sweetie Belle The first sequel. It deals with the fallout of The Secret Life of Rarity from Sweetie Belle's perspective over the course of about twenty years.

Broken Blossom The second sequel. It detals the life of Sweetie Belle's daughter, Joyous Blossom, after the ending of The Public Life of Sweetie Belle over the course of ten years.

Ripples A series of one-shot vignettes detailing the effect that Rarity's murders have had on Equestria.

The Word is Fear An alternate ending to Broken Blossom detailing Blossom's slow descent into madness. As of this writing the story is incomplete, but Blossom has just begun following in her aunt's hoofsteps and has become a serial killer.