The Arcangelo Family was a wealthy family that was slaughtered 22 years before the story begins. The identity of the murderer is unknown to the public and was last seen taking the younger son hostage before fleeing the scene.
The Arcangelo family consist of Worick Arcangelo currently. The rest of the family is currently deceased at the hands of Nicolas Brown, who is Worick's formal body guard. The reason why is currently hidden to the public.
The reason for doing so is because Worick ordered him when his father burned his eye with a cigarette. No one knows this and has been kept a secret for many years.