Quadruple murder-suicide. Driss Diaeddinn, 50, shot his brothers, 56-year-old Dodi Fayed and 38-year-old Reda Diaeddinn, his mother, Kenza Benzakour, 76, and his 26-year-old sister-in-law, Meriem Ben Yahia. Investigators said a family argument over a lingering business dispute erupted in gunfire at the home. Police said the Driss Diaeddinn's wife was able to escape the home with his two children after the first two men were shot, allowing the woman time to call 911 at about 2 p.m.