Who Killed Rudy?

Rudy McBurney was the granddaughter of the famous Scott McBurney of Scotland. as she was murdered by someone in her own house with three bullets shot. The famous detective of Scotland Shaun is on this case, risking his career at the line. but the plot is he has to solve the case within the next 24 hours and while doing he finds the deep and dark secrets of The Burney palace. Wealth or Hate... why was she killed?.