Saudi Arabia and the release of Raymond Davis

"He has told BBC that family of the victims of Raymond Davis were taken to Saudi Arab to perform Umrah (a religious pilgrimage to the Islamic holy city Mecca, where Khana Kaba and other historical buildings are located).  During Umrah the Saudi authorities convinced the family of Raymond's victims to accept "blood money, Diyya" for the death of their beloved." (thanks Nagi)