A Saudi opposition group, the National Assembly Party (NAAS), has called for an independent investigation into the murder of its founder, Manea al-Yami, who was killed in his home in Beirut on Sunday. The Lebanese authorities have been mostly silent about details surrounding the murder of al-Yami, but have said his two brothers stabbed him to death following a custody dispute. Al-Yami was reportedly married to the ex-wife of one of his brothers. “We are calling for a transparent, independent investigation into his death,” Abdullah Alaoudh, the Secretary-General of NAAS and director for the Gul…