How was Richard Draco killed?

What is the known relationship between Richard Draco and Carly Landsdowne? What is the relationship between them of which Carly was unaware?

Why is Nadine Furst so distraught about the murder of Richard Draco?

Why does Kenneth Styles dislike Richard Draco?

What is Delia Peabody's relationship with Charles Monroe? With McNab?

Who is Anja Carvell? What is her relationship to Richard Draco?

What is the motive for the murder of Richard Draco?