Do you like hurting people?

Jacket, the person who once took on a whole mafia gang by himself, and succeeded, is back at it once again. But this time, he isn't in Miami, or earth.
This time, he's in Equestria.
But will that stop his bloodthirsty devotion to killing everyone? Of course not. He's Jacket.
A person who will stop at nothing to kill everyone, and rip them to shreds.