I highly recommend Douglas Preston's THE MONSTER OF FLORENCE as background to this case. Preston was researching the serial killings that are the subject of this book when he was detained and accused of the crimes (!) by the very same prosecutor in the Knox case, last name Mannini. Mannini looks for ritual Satanism in every case he can find and is currently being prosecuted for misconduct and corruption, and faces one year in prison. It is quite likely that Knox and her Italian ex-boyfriend are innocent, especially since the likely killer has already been convicted.